Home / 261,634.40-392,491.30-111,875.12

Finding the Fourth Proportional to 261,634.40, 392,491.30 and 111,875.12

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Solution

The fourth proportional to 261,634.40, 392,491.30 and 111,875.12 is: 167,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,634.40 : 392,491.30 = 111,875.12 : x
  2. Step 2: Convert to fraction form
    261,634.40/392,491.30 = 111,875.12/x
  3. Step 3: Cross multiply
    261,634.40x = 392,491.30 × 111,875.12
  4. Step 4: Simplify right side
    261,634.40x = 43,910,011,286.46
  5. Step 5: Solve for x
    x = 43,910,011,286.46/261,634.40
  6. Step 6: Final answer
    x = 167,829.66

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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.