Home / 120,569.56-166,395.40-66,865.08

Finding the Fourth Proportional to 120,569.56, 166,395.40 and 66,865.08

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Solution

The fourth proportional to 120,569.56, 166,395.40 and 66,865.08 is: 92,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,569.56 : 166,395.40 = 66,865.08 : x
  2. Step 2: Convert to fraction form
    120,569.56/166,395.40 = 66,865.08/x
  3. Step 3: Cross multiply
    120,569.56x = 166,395.40 × 66,865.08
  4. Step 4: Simplify right side
    120,569.56x = 11,126,041,732.63
  5. Step 5: Solve for x
    x = 11,126,041,732.63/120,569.56
  6. Step 6: Final answer
    x = 92,279.03

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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.