Home / 102,402.97-141,342.83-66,690.97

Finding the Fourth Proportional to 102,402.97, 141,342.83 and 66,690.97

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Solution

The fourth proportional to 102,402.97, 141,342.83 and 66,690.97 is: 92,050.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,402.97 : 141,342.83 = 66,690.97 : x
  2. Step 2: Convert to fraction form
    102,402.97/141,342.83 = 66,690.97/x
  3. Step 3: Cross multiply
    102,402.97x = 141,342.83 × 66,690.97
  4. Step 4: Simplify right side
    102,402.97x = 9,426,290,101.79
  5. Step 5: Solve for x
    x = 9,426,290,101.79/102,402.97
  6. Step 6: Final answer
    x = 92,050.94

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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.