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Finding the Fourth Proportional to 99,223.80, 148,403.70 and 88,769.40

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Solution

The fourth proportional to 99,223.80, 148,403.70 and 88,769.40 is: 132,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,223.80 : 148,403.70 = 88,769.40 : x
  2. Step 2: Convert to fraction form
    99,223.80/148,403.70 = 88,769.40/x
  3. Step 3: Cross multiply
    99,223.80x = 148,403.70 × 88,769.40
  4. Step 4: Simplify right side
    99,223.80x = 13,173,707,406.78
  5. Step 5: Solve for x
    x = 13,173,707,406.78/99,223.80
  6. Step 6: Final answer
    x = 132,767.62

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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.