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Finding the Fourth Proportional to 98,748.80, 148,123.20 and 39,593.60

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Solution

The fourth proportional to 98,748.80, 148,123.20 and 39,593.60 is: 59,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,748.80 : 148,123.20 = 39,593.60 : x
  2. Step 2: Convert to fraction form
    98,748.80/148,123.20 = 39,593.60/x
  3. Step 3: Cross multiply
    98,748.80x = 148,123.20 × 39,593.60
  4. Step 4: Simplify right side
    98,748.80x = 5,864,730,731.52
  5. Step 5: Solve for x
    x = 5,864,730,731.52/98,748.80
  6. Step 6: Final answer
    x = 59,390.40

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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.