Home / 224,660.25-309,995.91-129,149.10

Finding the Fourth Proportional to 224,660.25, 309,995.91 and 129,149.10

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Solution

The fourth proportional to 224,660.25, 309,995.91 and 129,149.10 is: 178,205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,660.25 : 309,995.91 = 129,149.10 : x
  2. Step 2: Convert to fraction form
    224,660.25/309,995.91 = 129,149.10/x
  3. Step 3: Cross multiply
    224,660.25x = 309,995.91 × 129,149.10
  4. Step 4: Simplify right side
    224,660.25x = 40,035,692,780.18
  5. Step 5: Solve for x
    x = 40,035,692,780.18/224,660.25
  6. Step 6: Final answer
    x = 178,205.50

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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.