Home / 117,418-161,929.92-99,306.66

Finding the Fourth Proportional to 117,418, 161,929.92 and 99,306.66

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Solution

The fourth proportional to 117,418, 161,929.92 and 99,306.66 is: 136,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,418 : 161,929.92 = 99,306.66 : x
  2. Step 2: Convert to fraction form
    117,418/161,929.92 = 99,306.66/x
  3. Step 3: Cross multiply
    117,418x = 161,929.92 × 99,306.66
  4. Step 4: Simplify right side
    117,418x = 16,080,719,509.27
  5. Step 5: Solve for x
    x = 16,080,719,509.27/117,418
  6. Step 6: Final answer
    x = 136,952.76

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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.