Home / 207,868.80-286,851.96-131,429.04

Finding the Fourth Proportional to 207,868.80, 286,851.96 and 131,429.04

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Solution

The fourth proportional to 207,868.80, 286,851.96 and 131,429.04 is: 181,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,868.80 : 286,851.96 = 131,429.04 : x
  2. Step 2: Convert to fraction form
    207,868.80/286,851.96 = 131,429.04/x
  3. Step 3: Cross multiply
    207,868.80x = 286,851.96 × 131,429.04
  4. Step 4: Simplify right side
    207,868.80x = 37,700,677,724.92
  5. Step 5: Solve for x
    x = 37,700,677,724.92/207,868.80
  6. Step 6: Final answer
    x = 181,367.66

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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.