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Finding the Fourth Proportional to 125,649.63, 173,387.39 and 74,660.13

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Solution

The fourth proportional to 125,649.63, 173,387.39 and 74,660.13 is: 103,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,649.63 : 173,387.39 = 74,660.13 : x
  2. Step 2: Convert to fraction form
    125,649.63/173,387.39 = 74,660.13/x
  3. Step 3: Cross multiply
    125,649.63x = 173,387.39 × 74,660.13
  4. Step 4: Simplify right side
    125,649.63x = 12,945,124,704.46
  5. Step 5: Solve for x
    x = 12,945,124,704.46/125,649.63
  6. Step 6: Final answer
    x = 103,025.57

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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.