Home / 120,038.67-165,648.92-66,322.53

Finding the Fourth Proportional to 120,038.67, 165,648.92 and 66,322.53

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Solution

The fourth proportional to 120,038.67, 165,648.92 and 66,322.53 is: 91,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,038.67 : 165,648.92 = 66,322.53 : x
  2. Step 2: Convert to fraction form
    120,038.67/165,648.92 = 66,322.53/x
  3. Step 3: Cross multiply
    120,038.67x = 165,648.92 × 66,322.53
  4. Step 4: Simplify right side
    120,038.67x = 10,986,255,134.56
  5. Step 5: Solve for x
    x = 10,986,255,134.56/120,038.67
  6. Step 6: Final answer
    x = 91,522.63

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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.