Home / 141,812.08-212,800.80-53,127.88

Finding the Fourth Proportional to 141,812.08, 212,800.80 and 53,127.88

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Solution

The fourth proportional to 141,812.08, 212,800.80 and 53,127.88 is: 79,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,812.08 : 212,800.80 = 53,127.88 : x
  2. Step 2: Convert to fraction form
    141,812.08/212,800.80 = 53,127.88/x
  3. Step 3: Cross multiply
    141,812.08x = 212,800.80 × 53,127.88
  4. Step 4: Simplify right side
    141,812.08x = 11,305,655,366.30
  5. Step 5: Solve for x
    x = 11,305,655,366.30/141,812.08
  6. Step 6: Final answer
    x = 79,722.79

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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.