Home / 117,414-161,924.40-99,302.66

Finding the Fourth Proportional to 117,414, 161,924.40 and 99,302.66

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Solution

The fourth proportional to 117,414, 161,924.40 and 99,302.66 is: 136,947.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,414 : 161,924.40 = 99,302.66 : x
  2. Step 2: Convert to fraction form
    117,414/161,924.40 = 99,302.66/x
  3. Step 3: Cross multiply
    117,414x = 161,924.40 × 99,302.66
  4. Step 4: Simplify right side
    117,414x = 16,079,523,638.90
  5. Step 5: Solve for x
    x = 16,079,523,638.90/117,414
  6. Step 6: Final answer
    x = 136,947.24

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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.