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Finding the Fourth Proportional to 108,447.60, 149,660.88 and 60,700.80

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Solution

The fourth proportional to 108,447.60, 149,660.88 and 60,700.80 is: 83,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,447.60 : 149,660.88 = 60,700.80 : x
  2. Step 2: Convert to fraction form
    108,447.60/149,660.88 = 60,700.80/x
  3. Step 3: Cross multiply
    108,447.60x = 149,660.88 × 60,700.80
  4. Step 4: Simplify right side
    108,447.60x = 9,084,535,144.70
  5. Step 5: Solve for x
    x = 9,084,535,144.70/108,447.60
  6. Step 6: Final answer
    x = 83,768.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.