Home / 261,989.12-392,654.86-112,053.13

Finding the Fourth Proportional to 261,989.12, 392,654.86 and 112,053.13

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Solution

The fourth proportional to 261,989.12, 392,654.86 and 112,053.13 is: 167,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,989.12 : 392,654.86 = 112,053.13 : x
  2. Step 2: Convert to fraction form
    261,989.12/392,654.86 = 112,053.13/x
  3. Step 3: Cross multiply
    261,989.12x = 392,654.86 × 112,053.13
  4. Step 4: Simplify right side
    261,989.12x = 43,998,206,072.71
  5. Step 5: Solve for x
    x = 43,998,206,072.71/261,989.12
  6. Step 6: Final answer
    x = 167,939.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.