Home / 123,432.08-185,148.12-43,451.21

Finding the Fourth Proportional to 123,432.08, 185,148.12 and 43,451.21

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Solution

The fourth proportional to 123,432.08, 185,148.12 and 43,451.21 is: 65,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,432.08 : 185,148.12 = 43,451.21 : x
  2. Step 2: Convert to fraction form
    123,432.08/185,148.12 = 43,451.21/x
  3. Step 3: Cross multiply
    123,432.08x = 185,148.12 × 43,451.21
  4. Step 4: Simplify right side
    123,432.08x = 8,044,908,917.48
  5. Step 5: Solve for x
    x = 8,044,908,917.48/123,432.08
  6. Step 6: Final answer
    x = 65,176.81

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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.