Home / 121,040.28-181,545.84-42,147.96

Finding the Fourth Proportional to 121,040.28, 181,545.84 and 42,147.96

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Solution

The fourth proportional to 121,040.28, 181,545.84 and 42,147.96 is: 63,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,040.28 : 181,545.84 = 42,147.96 : x
  2. Step 2: Convert to fraction form
    121,040.28/181,545.84 = 42,147.96/x
  3. Step 3: Cross multiply
    121,040.28x = 181,545.84 × 42,147.96
  4. Step 4: Simplify right side
    121,040.28x = 7,651,786,802.49
  5. Step 5: Solve for x
    x = 7,651,786,802.49/121,040.28
  6. Step 6: Final answer
    x = 63,216.86

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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.