Home / 88,931.60-133,397.40-82,173.20

Finding the Fourth Proportional to 88,931.60, 133,397.40 and 82,173.20

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Solution

The fourth proportional to 88,931.60, 133,397.40 and 82,173.20 is: 123,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,931.60 : 133,397.40 = 82,173.20 : x
  2. Step 2: Convert to fraction form
    88,931.60/133,397.40 = 82,173.20/x
  3. Step 3: Cross multiply
    88,931.60x = 133,397.40 × 82,173.20
  4. Step 4: Simplify right side
    88,931.60x = 10,961,691,229.68
  5. Step 5: Solve for x
    x = 10,961,691,229.68/88,931.60
  6. Step 6: Final answer
    x = 123,259.80

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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.