Home / 143,508.12-215,121.65-53,484.93

Finding the Fourth Proportional to 143,508.12, 215,121.65 and 53,484.93

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Solution

The fourth proportional to 143,508.12, 215,121.65 and 53,484.93 is: 80,175.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,508.12 : 215,121.65 = 53,484.93 : x
  2. Step 2: Convert to fraction form
    143,508.12/215,121.65 = 53,484.93/x
  3. Step 3: Cross multiply
    143,508.12x = 215,121.65 × 53,484.93
  4. Step 4: Simplify right side
    143,508.12x = 11,505,766,124.31
  5. Step 5: Solve for x
    x = 11,505,766,124.31/143,508.12
  6. Step 6: Final answer
    x = 80,175.02

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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.