Home / 106,755.28-147,327.96-61,440.16

Finding the Fourth Proportional to 106,755.28, 147,327.96 and 61,440.16

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Solution

The fourth proportional to 106,755.28, 147,327.96 and 61,440.16 is: 84,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,755.28 : 147,327.96 = 61,440.16 : x
  2. Step 2: Convert to fraction form
    106,755.28/147,327.96 = 61,440.16/x
  3. Step 3: Cross multiply
    106,755.28x = 147,327.96 × 61,440.16
  4. Step 4: Simplify right side
    106,755.28x = 9,051,853,434.87
  5. Step 5: Solve for x
    x = 9,051,853,434.87/106,755.28
  6. Step 6: Final answer
    x = 84,790.69

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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.