Home / 143,240.10-214,892.55-84,045.30

Finding the Fourth Proportional to 143,240.10, 214,892.55 and 84,045.30

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Solution

The fourth proportional to 143,240.10, 214,892.55 and 84,045.30 is: 126,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,240.10 : 214,892.55 = 84,045.30 : x
  2. Step 2: Convert to fraction form
    143,240.10/214,892.55 = 84,045.30/x
  3. Step 3: Cross multiply
    143,240.10x = 214,892.55 × 84,045.30
  4. Step 4: Simplify right side
    143,240.10x = 18,060,708,832.52
  5. Step 5: Solve for x
    x = 18,060,708,832.52/143,240.10
  6. Step 6: Final answer
    x = 126,086.96

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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.