Home / 143,864.44-215,929.76-72,837

Finding the Fourth Proportional to 143,864.44, 215,929.76 and 72,837

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Solution

The fourth proportional to 143,864.44, 215,929.76 and 72,837 is: 109,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.44 : 215,929.76 = 72,837 : x
  2. Step 2: Convert to fraction form
    143,864.44/215,929.76 = 72,837/x
  3. Step 3: Cross multiply
    143,864.44x = 215,929.76 × 72,837
  4. Step 4: Simplify right side
    143,864.44x = 15,727,675,929.12
  5. Step 5: Solve for x
    x = 15,727,675,929.12/143,864.44
  6. Step 6: Final answer
    x = 109,322.89

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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.