Home / 155,523.12-214,617.24-87,543.96

Finding the Fourth Proportional to 155,523.12, 214,617.24 and 87,543.96

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Solution

The fourth proportional to 155,523.12, 214,617.24 and 87,543.96 is: 120,808.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,523.12 : 214,617.24 = 87,543.96 : x
  2. Step 2: Convert to fraction form
    155,523.12/214,617.24 = 87,543.96/x
  3. Step 3: Cross multiply
    155,523.12x = 214,617.24 × 87,543.96
  4. Step 4: Simplify right side
    155,523.12x = 18,788,443,073.87
  5. Step 5: Solve for x
    x = 18,788,443,073.87/155,523.12
  6. Step 6: Final answer
    x = 120,808.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.