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Finding the Fourth Proportional to 99,181.80, 148,340.70 and 88,727.40

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Solution

The fourth proportional to 99,181.80, 148,340.70 and 88,727.40 is: 132,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,181.80 : 148,340.70 = 88,727.40 : x
  2. Step 2: Convert to fraction form
    99,181.80/148,340.70 = 88,727.40/x
  3. Step 3: Cross multiply
    99,181.80x = 148,340.70 × 88,727.40
  4. Step 4: Simplify right side
    99,181.80x = 13,161,884,625.18
  5. Step 5: Solve for x
    x = 13,161,884,625.18/99,181.80
  6. Step 6: Final answer
    x = 132,704.64

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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.