Home / 121,088.55-181,625.45-45,172.47

Finding the Fourth Proportional to 121,088.55, 181,625.45 and 45,172.47

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Solution

The fourth proportional to 121,088.55, 181,625.45 and 45,172.47 is: 67,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,088.55 : 181,625.45 = 45,172.47 : x
  2. Step 2: Convert to fraction form
    121,088.55/181,625.45 = 45,172.47/x
  3. Step 3: Cross multiply
    121,088.55x = 181,625.45 × 45,172.47
  4. Step 4: Simplify right side
    121,088.55x = 8,204,469,965.50
  5. Step 5: Solve for x
    x = 8,204,469,965.50/121,088.55
  6. Step 6: Final answer
    x = 67,755.95

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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.