Home / 130,342.38-179,900.61-79,372.02

Finding the Fourth Proportional to 130,342.38, 179,900.61 and 79,372.02

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Solution

The fourth proportional to 130,342.38, 179,900.61 and 79,372.02 is: 109,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,342.38 : 179,900.61 = 79,372.02 : x
  2. Step 2: Convert to fraction form
    130,342.38/179,900.61 = 79,372.02/x
  3. Step 3: Cross multiply
    130,342.38x = 179,900.61 × 79,372.02
  4. Step 4: Simplify right side
    130,342.38x = 14,279,074,814.93
  5. Step 5: Solve for x
    x = 14,279,074,814.93/130,342.38
  6. Step 6: Final answer
    x = 109,550.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.