Home / 121,029.18-181,486.17-42,133.74

Finding the Fourth Proportional to 121,029.18, 181,486.17 and 42,133.74

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Solution

The fourth proportional to 121,029.18, 181,486.17 and 42,133.74 is: 63,180.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,029.18 : 181,486.17 = 42,133.74 : x
  2. Step 2: Convert to fraction form
    121,029.18/181,486.17 = 42,133.74/x
  3. Step 3: Cross multiply
    121,029.18x = 181,486.17 × 42,133.74
  4. Step 4: Simplify right side
    121,029.18x = 7,646,691,100.38
  5. Step 5: Solve for x
    x = 7,646,691,100.38/121,029.18
  6. Step 6: Final answer
    x = 63,180.56

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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.