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Finding the Fourth Proportional to 98,575.80, 147,960.90 and 48,712.20

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Solution

The fourth proportional to 98,575.80, 147,960.90 and 48,712.20 is: 73,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.80 : 147,960.90 = 48,712.20 : x
  2. Step 2: Convert to fraction form
    98,575.80/147,960.90 = 48,712.20/x
  3. Step 3: Cross multiply
    98,575.80x = 147,960.90 × 48,712.20
  4. Step 4: Simplify right side
    98,575.80x = 7,207,500,952.98
  5. Step 5: Solve for x
    x = 7,207,500,952.98/98,575.80
  6. Step 6: Final answer
    x = 73,116.33

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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.