Home / 107,337.15-161,117.51-79,288.88

Finding the Fourth Proportional to 107,337.15, 161,117.51 and 79,288.88

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Solution

The fourth proportional to 107,337.15, 161,117.51 and 79,288.88 is: 119,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,337.15 : 161,117.51 = 79,288.88 : x
  2. Step 2: Convert to fraction form
    107,337.15/161,117.51 = 79,288.88/x
  3. Step 3: Cross multiply
    107,337.15x = 161,117.51 × 79,288.88
  4. Step 4: Simplify right side
    107,337.15x = 12,774,825,714.26
  5. Step 5: Solve for x
    x = 12,774,825,714.26/107,337.15
  6. Step 6: Final answer
    x = 119,015.88

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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.