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Finding the Fourth Proportional to 125,481.67, 173,088.63 and 74,460.78

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Solution

The fourth proportional to 125,481.67, 173,088.63 and 74,460.78 is: 102,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,481.67 : 173,088.63 = 74,460.78 : x
  2. Step 2: Convert to fraction form
    125,481.67/173,088.63 = 74,460.78/x
  3. Step 3: Cross multiply
    125,481.67x = 173,088.63 × 74,460.78
  4. Step 4: Simplify right side
    125,481.67x = 12,888,314,398.93
  5. Step 5: Solve for x
    x = 12,888,314,398.93/125,481.67
  6. Step 6: Final answer
    x = 102,710.74

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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.