Home / 142,999.12-214,555.18-54,276.18

Finding the Fourth Proportional to 142,999.12, 214,555.18 and 54,276.18

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Solution

The fourth proportional to 142,999.12, 214,555.18 and 54,276.18 is: 81,435.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,999.12 : 214,555.18 = 54,276.18 : x
  2. Step 2: Convert to fraction form
    142,999.12/214,555.18 = 54,276.18/x
  3. Step 3: Cross multiply
    142,999.12x = 214,555.18 × 54,276.18
  4. Step 4: Simplify right side
    142,999.12x = 11,645,234,731.11
  5. Step 5: Solve for x
    x = 11,645,234,731.11/142,999.12
  6. Step 6: Final answer
    x = 81,435.71

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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.