Home / 161,422.74-242,131.32-72,613.53

Finding the Fourth Proportional to 161,422.74, 242,131.32 and 72,613.53

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Solution

The fourth proportional to 161,422.74, 242,131.32 and 72,613.53 is: 108,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,422.74 : 242,131.32 = 72,613.53 : x
  2. Step 2: Convert to fraction form
    161,422.74/242,131.32 = 72,613.53/x
  3. Step 3: Cross multiply
    161,422.74x = 242,131.32 × 72,613.53
  4. Step 4: Simplify right side
    161,422.74x = 17,582,009,868.76
  5. Step 5: Solve for x
    x = 17,582,009,868.76/161,422.74
  6. Step 6: Final answer
    x = 108,919.04

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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.