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Finding the Fourth Proportional to 88,305.60, 132,458.40 and 82,430.40

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Solution

The fourth proportional to 88,305.60, 132,458.40 and 82,430.40 is: 123,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,305.60 : 132,458.40 = 82,430.40 : x
  2. Step 2: Convert to fraction form
    88,305.60/132,458.40 = 82,430.40/x
  3. Step 3: Cross multiply
    88,305.60x = 132,458.40 × 82,430.40
  4. Step 4: Simplify right side
    88,305.60x = 10,918,598,895.36
  5. Step 5: Solve for x
    x = 10,918,598,895.36/88,305.60
  6. Step 6: Final answer
    x = 123,645.60

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1.5x scale

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.