Home / 130,344.93-179,891.15-79,387.56

Finding the Fourth Proportional to 130,344.93, 179,891.15 and 79,387.56

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Solution

The fourth proportional to 130,344.93, 179,891.15 and 79,387.56 is: 109,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,344.93 : 179,891.15 = 79,387.56 : x
  2. Step 2: Convert to fraction form
    130,344.93/179,891.15 = 79,387.56/x
  3. Step 3: Cross multiply
    130,344.93x = 179,891.15 × 79,387.56
  4. Step 4: Simplify right side
    130,344.93x = 14,281,119,067.16
  5. Step 5: Solve for x
    x = 14,281,119,067.16/130,344.93
  6. Step 6: Final answer
    x = 109,564.05

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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.