Home / 116,948.64-161,462.92-81,126.12

Finding the Fourth Proportional to 116,948.64, 161,462.92 and 81,126.12

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Solution

The fourth proportional to 116,948.64, 161,462.92 and 81,126.12 is: 112,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,948.64 : 161,462.92 = 81,126.12 : x
  2. Step 2: Convert to fraction form
    116,948.64/161,462.92 = 81,126.12/x
  3. Step 3: Cross multiply
    116,948.64x = 161,462.92 × 81,126.12
  4. Step 4: Simplify right side
    116,948.64x = 13,098,860,223.47
  5. Step 5: Solve for x
    x = 13,098,860,223.47/116,948.64
  6. Step 6: Final answer
    x = 112,005.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.