Home / 123,672.12-185,508.34-30,177.40

Finding the Fourth Proportional to 123,672.12, 185,508.34 and 30,177.40

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Solution

The fourth proportional to 123,672.12, 185,508.34 and 30,177.40 is: 45,266.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,672.12 : 185,508.34 = 30,177.40 : x
  2. Step 2: Convert to fraction form
    123,672.12/185,508.34 = 30,177.40/x
  3. Step 3: Cross multiply
    123,672.12x = 185,508.34 × 30,177.40
  4. Step 4: Simplify right side
    123,672.12x = 5,598,159,379.52
  5. Step 5: Solve for x
    x = 5,598,159,379.52/123,672.12
  6. Step 6: Final answer
    x = 45,266.14

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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.