Home / 123,385.22-185,154-48,492.20

Finding the Fourth Proportional to 123,385.22, 185,154 and 48,492.20

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Solution

The fourth proportional to 123,385.22, 185,154 and 48,492.20 is: 72,768.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,385.22 : 185,154 = 48,492.20 : x
  2. Step 2: Convert to fraction form
    123,385.22/185,154 = 48,492.20/x
  3. Step 3: Cross multiply
    123,385.22x = 185,154 × 48,492.20
  4. Step 4: Simplify right side
    123,385.22x = 8,978,524,798.80
  5. Step 5: Solve for x
    x = 8,978,524,798.80/123,385.22
  6. Step 6: Final answer
    x = 72,768.24

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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.