Home / 145,384.68-200,633.34-79,976.28

Finding the Fourth Proportional to 145,384.68, 200,633.34 and 79,976.28

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Solution

The fourth proportional to 145,384.68, 200,633.34 and 79,976.28 is: 110,368.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,384.68 : 200,633.34 = 79,976.28 : x
  2. Step 2: Convert to fraction form
    145,384.68/200,633.34 = 79,976.28/x
  3. Step 3: Cross multiply
    145,384.68x = 200,633.34 × 79,976.28
  4. Step 4: Simplify right side
    145,384.68x = 16,045,908,177.18
  5. Step 5: Solve for x
    x = 16,045,908,177.18/145,384.68
  6. Step 6: Final answer
    x = 110,368.63

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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.