Home / 102,424.39-141,346.25-57,105.25

Finding the Fourth Proportional to 102,424.39, 141,346.25 and 57,105.25

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Solution

The fourth proportional to 102,424.39, 141,346.25 and 57,105.25 is: 78,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,424.39 : 141,346.25 = 57,105.25 : x
  2. Step 2: Convert to fraction form
    102,424.39/141,346.25 = 57,105.25/x
  3. Step 3: Cross multiply
    102,424.39x = 141,346.25 × 57,105.25
  4. Step 4: Simplify right side
    102,424.39x = 8,071,612,657.29
  5. Step 5: Solve for x
    x = 8,071,612,657.29/102,424.39
  6. Step 6: Final answer
    x = 78,805.57

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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.