Home / 99,008.20-148,253.10-72,569.80

Finding the Fourth Proportional to 99,008.20, 148,253.10 and 72,569.80

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Solution

The fourth proportional to 99,008.20, 148,253.10 and 72,569.80 is: 108,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,008.20 : 148,253.10 = 72,569.80 : x
  2. Step 2: Convert to fraction form
    99,008.20/148,253.10 = 72,569.80/x
  3. Step 3: Cross multiply
    99,008.20x = 148,253.10 × 72,569.80
  4. Step 4: Simplify right side
    99,008.20x = 10,758,697,816.38
  5. Step 5: Solve for x
    x = 10,758,697,816.38/99,008.20
  6. Step 6: Final answer
    x = 108,664.71

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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.