Home / 224,569.56-309,917.70-129,108.36

Finding the Fourth Proportional to 224,569.56, 309,917.70 and 129,108.36

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Solution

The fourth proportional to 224,569.56, 309,917.70 and 129,108.36 is: 178,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,569.56 : 309,917.70 = 129,108.36 : x
  2. Step 2: Convert to fraction form
    224,569.56/309,917.70 = 129,108.36/x
  3. Step 3: Cross multiply
    224,569.56x = 309,917.70 × 129,108.36
  4. Step 4: Simplify right side
    224,569.56x = 40,012,965,981.97
  5. Step 5: Solve for x
    x = 40,012,965,981.97/224,569.56
  6. Step 6: Final answer
    x = 178,176.27

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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.