Home / 99,121.02-148,686.10-28,049

Finding the Fourth Proportional to 99,121.02, 148,686.10 and 28,049

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Solution

The fourth proportional to 99,121.02, 148,686.10 and 28,049 is: 42,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,121.02 : 148,686.10 = 28,049 : x
  2. Step 2: Convert to fraction form
    99,121.02/148,686.10 = 28,049/x
  3. Step 3: Cross multiply
    99,121.02x = 148,686.10 × 28,049
  4. Step 4: Simplify right side
    99,121.02x = 4,170,496,418.90
  5. Step 5: Solve for x
    x = 4,170,496,418.90/99,121.02
  6. Step 6: Final answer
    x = 42,074.79

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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.