Home / 121,351.29-181,987.32-40,276.53

Finding the Fourth Proportional to 121,351.29, 181,987.32 and 40,276.53

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Solution

The fourth proportional to 121,351.29, 181,987.32 and 40,276.53 is: 60,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,351.29 : 181,987.32 = 40,276.53 : x
  2. Step 2: Convert to fraction form
    121,351.29/181,987.32 = 40,276.53/x
  3. Step 3: Cross multiply
    121,351.29x = 181,987.32 × 40,276.53
  4. Step 4: Simplify right side
    121,351.29x = 7,329,817,753.60
  5. Step 5: Solve for x
    x = 7,329,817,753.60/121,351.29
  6. Step 6: Final answer
    x = 60,401.65

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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.