Home / 120,569.06-166,394.70-66,864.57

Finding the Fourth Proportional to 120,569.06, 166,394.70 and 66,864.57

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Solution

The fourth proportional to 120,569.06, 166,394.70 and 66,864.57 is: 92,278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,569.06 : 166,394.70 = 66,864.57 : x
  2. Step 2: Convert to fraction form
    120,569.06/166,394.70 = 66,864.57/x
  3. Step 3: Cross multiply
    120,569.06x = 166,394.70 × 66,864.57
  4. Step 4: Simplify right side
    120,569.06x = 11,125,910,065.78
  5. Step 5: Solve for x
    x = 11,125,910,065.78/120,569.06
  6. Step 6: Final answer
    x = 92,278.32

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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.