Home / 120,570.18-166,386.03-66,855.24

Finding the Fourth Proportional to 120,570.18, 166,386.03 and 66,855.24

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Solution

The fourth proportional to 120,570.18, 166,386.03 and 66,855.24 is: 92,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,570.18 : 166,386.03 = 66,855.24 : x
  2. Step 2: Convert to fraction form
    120,570.18/166,386.03 = 66,855.24/x
  3. Step 3: Cross multiply
    120,570.18x = 166,386.03 × 66,855.24
  4. Step 4: Simplify right side
    120,570.18x = 11,123,777,968.30
  5. Step 5: Solve for x
    x = 11,123,777,968.30/120,570.18
  6. Step 6: Final answer
    x = 92,259.78

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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.