Home / 129,042.72-177,594.12-109,160.46

Finding the Fourth Proportional to 129,042.72, 177,594.12 and 109,160.46

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Solution

The fourth proportional to 129,042.72, 177,594.12 and 109,160.46 is: 150,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,042.72 : 177,594.12 = 109,160.46 : x
  2. Step 2: Convert to fraction form
    129,042.72/177,594.12 = 109,160.46/x
  3. Step 3: Cross multiply
    129,042.72x = 177,594.12 × 109,160.46
  4. Step 4: Simplify right side
    129,042.72x = 19,386,255,832.50
  5. Step 5: Solve for x
    x = 19,386,255,832.50/129,042.72
  6. Step 6: Final answer
    x = 150,231.30

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1.5x scale

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.