Home / 112,299.38-154,955.52-64,543.80

Finding the Fourth Proportional to 112,299.38, 154,955.52 and 64,543.80

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Solution

The fourth proportional to 112,299.38, 154,955.52 and 64,543.80 is: 89,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,299.38 : 154,955.52 = 64,543.80 : x
  2. Step 2: Convert to fraction form
    112,299.38/154,955.52 = 64,543.80/x
  3. Step 3: Cross multiply
    112,299.38x = 154,955.52 × 64,543.80
  4. Step 4: Simplify right side
    112,299.38x = 10,001,418,091.78
  5. Step 5: Solve for x
    x = 10,001,418,091.78/112,299.38
  6. Step 6: Final answer
    x = 89,060.32

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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.