Home / 129,367.28-178,461.50-75,617.18

Finding the Fourth Proportional to 129,367.28, 178,461.50 and 75,617.18

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Solution

The fourth proportional to 129,367.28, 178,461.50 and 75,617.18 is: 104,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,367.28 : 178,461.50 = 75,617.18 : x
  2. Step 2: Convert to fraction form
    129,367.28/178,461.50 = 75,617.18/x
  3. Step 3: Cross multiply
    129,367.28x = 178,461.50 × 75,617.18
  4. Step 4: Simplify right side
    129,367.28x = 13,494,755,368.57
  5. Step 5: Solve for x
    x = 13,494,755,368.57/129,367.28
  6. Step 6: Final answer
    x = 104,313.51

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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.