Home / 97,691.04-146,308.68-71,330.40

Finding the Fourth Proportional to 97,691.04, 146,308.68 and 71,330.40

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Solution

The fourth proportional to 97,691.04, 146,308.68 and 71,330.40 is: 106,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,691.04 : 146,308.68 = 71,330.40 : x
  2. Step 2: Convert to fraction form
    97,691.04/146,308.68 = 71,330.40/x
  3. Step 3: Cross multiply
    97,691.04x = 146,308.68 × 71,330.40
  4. Step 4: Simplify right side
    97,691.04x = 10,436,256,667.87
  5. Step 5: Solve for x
    x = 10,436,256,667.87/97,691.04
  6. Step 6: Final answer
    x = 106,829.21

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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.