Home / 207,872.16-286,866.20-126,176.80

Finding the Fourth Proportional to 207,872.16, 286,866.20 and 126,176.80

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Solution

The fourth proportional to 207,872.16, 286,866.20 and 126,176.80 is: 174,125.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,872.16 : 286,866.20 = 126,176.80 : x
  2. Step 2: Convert to fraction form
    207,872.16/286,866.20 = 126,176.80/x
  3. Step 3: Cross multiply
    207,872.16x = 286,866.20 × 126,176.80
  4. Step 4: Simplify right side
    207,872.16x = 36,195,859,144.16
  5. Step 5: Solve for x
    x = 36,195,859,144.16/207,872.16
  6. Step 6: Final answer
    x = 174,125.57

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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.