Home / 121,292.10-181,938.15-38,175.30

Finding the Fourth Proportional to 121,292.10, 181,938.15 and 38,175.30

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Solution

The fourth proportional to 121,292.10, 181,938.15 and 38,175.30 is: 57,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,292.10 : 181,938.15 = 38,175.30 : x
  2. Step 2: Convert to fraction form
    121,292.10/181,938.15 = 38,175.30/x
  3. Step 3: Cross multiply
    121,292.10x = 181,938.15 × 38,175.30
  4. Step 4: Simplify right side
    121,292.10x = 6,945,543,457.70
  5. Step 5: Solve for x
    x = 6,945,543,457.70/121,292.10
  6. Step 6: Final answer
    x = 57,262.95

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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.