Home / 129,935.60-194,903.40-103,691.60

Finding the Fourth Proportional to 129,935.60, 194,903.40 and 103,691.60

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Solution

The fourth proportional to 129,935.60, 194,903.40 and 103,691.60 is: 155,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,935.60 : 194,903.40 = 103,691.60 : x
  2. Step 2: Convert to fraction form
    129,935.60/194,903.40 = 103,691.60/x
  3. Step 3: Cross multiply
    129,935.60x = 194,903.40 × 103,691.60
  4. Step 4: Simplify right side
    129,935.60x = 20,209,845,391.44
  5. Step 5: Solve for x
    x = 20,209,845,391.44/129,935.60
  6. Step 6: Final answer
    x = 155,537.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.