Home / 123,278.83-185,001.28-48,390.10

Finding the Fourth Proportional to 123,278.83, 185,001.28 and 48,390.10

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Solution

The fourth proportional to 123,278.83, 185,001.28 and 48,390.10 is: 72,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,278.83 : 185,001.28 = 48,390.10 : x
  2. Step 2: Convert to fraction form
    123,278.83/185,001.28 = 48,390.10/x
  3. Step 3: Cross multiply
    123,278.83x = 185,001.28 × 48,390.10
  4. Step 4: Simplify right side
    123,278.83x = 8,952,229,855.85
  5. Step 5: Solve for x
    x = 8,952,229,855.85/123,278.83
  6. Step 6: Final answer
    x = 72,617.74

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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.