Home / 130,335.44-179,878.06-79,378.04

Finding the Fourth Proportional to 130,335.44, 179,878.06 and 79,378.04

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Solution

The fourth proportional to 130,335.44, 179,878.06 and 79,378.04 is: 109,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,335.44 : 179,878.06 = 79,378.04 : x
  2. Step 2: Convert to fraction form
    130,335.44/179,878.06 = 79,378.04/x
  3. Step 3: Cross multiply
    130,335.44x = 179,878.06 × 79,378.04
  4. Step 4: Simplify right side
    130,335.44x = 14,278,367,841.80
  5. Step 5: Solve for x
    x = 14,278,367,841.80/130,335.44
  6. Step 6: Final answer
    x = 109,550.92

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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.