Home / 161,442.39-242,161.16-72,633.18

Finding the Fourth Proportional to 161,442.39, 242,161.16 and 72,633.18

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Solution

The fourth proportional to 161,442.39, 242,161.16 and 72,633.18 is: 108,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,442.39 : 242,161.16 = 72,633.18 : x
  2. Step 2: Convert to fraction form
    161,442.39/242,161.16 = 72,633.18/x
  3. Step 3: Cross multiply
    161,442.39x = 242,161.16 × 72,633.18
  4. Step 4: Simplify right side
    161,442.39x = 17,588,934,760.12
  5. Step 5: Solve for x
    x = 17,588,934,760.12/161,442.39
  6. Step 6: Final answer
    x = 108,948.68

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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.