Home / 88,921.60-133,382.40-84,839.20

Finding the Fourth Proportional to 88,921.60, 133,382.40 and 84,839.20

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Solution

The fourth proportional to 88,921.60, 133,382.40 and 84,839.20 is: 127,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,921.60 : 133,382.40 = 84,839.20 : x
  2. Step 2: Convert to fraction form
    88,921.60/133,382.40 = 84,839.20/x
  3. Step 3: Cross multiply
    88,921.60x = 133,382.40 × 84,839.20
  4. Step 4: Simplify right side
    88,921.60x = 11,316,056,110.08
  5. Step 5: Solve for x
    x = 11,316,056,110.08/88,921.60
  6. Step 6: Final answer
    x = 127,258.80

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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.