Home / 143,429.40-214,904.88-101,240.55

Finding the Fourth Proportional to 143,429.40, 214,904.88 and 101,240.55

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Solution

The fourth proportional to 143,429.40, 214,904.88 and 101,240.55 is: 151,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,429.40 : 214,904.88 = 101,240.55 : x
  2. Step 2: Convert to fraction form
    143,429.40/214,904.88 = 101,240.55/x
  3. Step 3: Cross multiply
    143,429.40x = 214,904.88 × 101,240.55
  4. Step 4: Simplify right side
    143,429.40x = 21,757,088,248.88
  5. Step 5: Solve for x
    x = 21,757,088,248.88/143,429.40
  6. Step 6: Final answer
    x = 151,691.97

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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.