Home / 106,742.52-147,194.40-91,685.16

Finding the Fourth Proportional to 106,742.52, 147,194.40 and 91,685.16

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Solution

The fourth proportional to 106,742.52, 147,194.40 and 91,685.16 is: 126,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,742.52 : 147,194.40 = 91,685.16 : x
  2. Step 2: Convert to fraction form
    106,742.52/147,194.40 = 91,685.16/x
  3. Step 3: Cross multiply
    106,742.52x = 147,194.40 × 91,685.16
  4. Step 4: Simplify right side
    106,742.52x = 13,495,542,115.10
  5. Step 5: Solve for x
    x = 13,495,542,115.10/106,742.52
  6. Step 6: Final answer
    x = 126,430.80

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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.