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Finding the Fourth Proportional to 136,155.61, 204,206.41 and 129,404.41

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Solution

The fourth proportional to 136,155.61, 204,206.41 and 129,404.41 is: 194,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,155.61 : 204,206.41 = 129,404.41 : x
  2. Step 2: Convert to fraction form
    136,155.61/204,206.41 = 129,404.41/x
  3. Step 3: Cross multiply
    136,155.61x = 204,206.41 × 129,404.41
  4. Step 4: Simplify right side
    136,155.61x = 26,425,210,004.27
  5. Step 5: Solve for x
    x = 26,425,210,004.27/136,155.61
  6. Step 6: Final answer
    x = 194,080.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.