Home / 107,777.52-162,031.14-86,864.31

Finding the Fourth Proportional to 107,777.52, 162,031.14 and 86,864.31

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Solution

The fourth proportional to 107,777.52, 162,031.14 and 86,864.31 is: 130,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,777.52 : 162,031.14 = 86,864.31 : x
  2. Step 2: Convert to fraction form
    107,777.52/162,031.14 = 86,864.31/x
  3. Step 3: Cross multiply
    107,777.52x = 162,031.14 × 86,864.31
  4. Step 4: Simplify right side
    107,777.52x = 14,074,723,174.61
  5. Step 5: Solve for x
    x = 14,074,723,174.61/107,777.52
  6. Step 6: Final answer
    x = 130,590.53

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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.