Home / 121,811.10-182,710.17-38,698.62

Finding the Fourth Proportional to 121,811.10, 182,710.17 and 38,698.62

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Solution

The fourth proportional to 121,811.10, 182,710.17 and 38,698.62 is: 58,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,811.10 : 182,710.17 = 38,698.62 : x
  2. Step 2: Convert to fraction form
    121,811.10/182,710.17 = 38,698.62/x
  3. Step 3: Cross multiply
    121,811.10x = 182,710.17 × 38,698.62
  4. Step 4: Simplify right side
    121,811.10x = 7,070,631,438.97
  5. Step 5: Solve for x
    x = 7,070,631,438.97/121,811.10
  6. Step 6: Final answer
    x = 58,045.87

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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.