Home / 141,930.40-212,654.61-85,652.27

Finding the Fourth Proportional to 141,930.40, 212,654.61 and 85,652.27

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Solution

The fourth proportional to 141,930.40, 212,654.61 and 85,652.27 is: 128,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,930.40 : 212,654.61 = 85,652.27 : x
  2. Step 2: Convert to fraction form
    141,930.40/212,654.61 = 85,652.27/x
  3. Step 3: Cross multiply
    141,930.40x = 212,654.61 × 85,652.27
  4. Step 4: Simplify right side
    141,930.40x = 18,214,350,072.46
  5. Step 5: Solve for x
    x = 18,214,350,072.46/141,930.40
  6. Step 6: Final answer
    x = 128,332.97

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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.