Home / 145,200,045.88-200,376,082.02-79,120,554.76

Finding the Fourth Proportional to 145,200,045.88, 200,376,082.02 and 79,120,554.76

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Solution

The fourth proportional to 145,200,045.88, 200,376,082.02 and 79,120,554.76 is: 109,186,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,200,045.88 : 200,376,082.02 = 79,120,554.76 : x
  2. Step 2: Convert to fraction form
    145,200,045.88/200,376,082.02 = 79,120,554.76/x
  3. Step 3: Cross multiply
    145,200,045.88x = 200,376,082.02 × 79,120,554.76
  4. Step 4: Simplify right side
    145,200,045.88x = 15,853,866,770,057,664
  5. Step 5: Solve for x
    x = 15,853,866,770,057,664/145,200,045.88
  6. Step 6: Final answer
    x = 109,186,375.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.