Home / 121,202.10-181,803.15-38,085.30

Finding the Fourth Proportional to 121,202.10, 181,803.15 and 38,085.30

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Solution

The fourth proportional to 121,202.10, 181,803.15 and 38,085.30 is: 57,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,202.10 : 181,803.15 = 38,085.30 : x
  2. Step 2: Convert to fraction form
    121,202.10/181,803.15 = 38,085.30/x
  3. Step 3: Cross multiply
    121,202.10x = 181,803.15 × 38,085.30
  4. Step 4: Simplify right side
    121,202.10x = 6,924,027,508.70
  5. Step 5: Solve for x
    x = 6,924,027,508.70/121,202.10
  6. Step 6: Final answer
    x = 57,127.95

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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.