Home / 121,160.11-181,679.13-70,575.43

Finding the Fourth Proportional to 121,160.11, 181,679.13 and 70,575.43

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Solution

The fourth proportional to 121,160.11, 181,679.13 and 70,575.43 is: 105,827.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160.11 : 181,679.13 = 70,575.43 : x
  2. Step 2: Convert to fraction form
    121,160.11/181,679.13 = 70,575.43/x
  3. Step 3: Cross multiply
    121,160.11x = 181,679.13 × 70,575.43
  4. Step 4: Simplify right side
    121,160.11x = 12,822,082,721.78
  5. Step 5: Solve for x
    x = 12,822,082,721.78/121,160.11
  6. Step 6: Final answer
    x = 105,827.59

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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.