Home / 130,087.38-179,575.93-79,116.47

Finding the Fourth Proportional to 130,087.38, 179,575.93 and 79,116.47

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Solution

The fourth proportional to 130,087.38, 179,575.93 and 79,116.47 is: 109,214.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,087.38 : 179,575.93 = 79,116.47 : x
  2. Step 2: Convert to fraction form
    130,087.38/179,575.93 = 79,116.47/x
  3. Step 3: Cross multiply
    130,087.38x = 179,575.93 × 79,116.47
  4. Step 4: Simplify right side
    130,087.38x = 14,207,414,002.42
  5. Step 5: Solve for x
    x = 14,207,414,002.42/130,087.38
  6. Step 6: Final answer
    x = 109,214.39

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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.