Home / 120,064.28-165,683.34-66,348.14

Finding the Fourth Proportional to 120,064.28, 165,683.34 and 66,348.14

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Solution

The fourth proportional to 120,064.28, 165,683.34 and 66,348.14 is: 91,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,064.28 : 165,683.34 = 66,348.14 : x
  2. Step 2: Convert to fraction form
    120,064.28/165,683.34 = 66,348.14/x
  3. Step 3: Cross multiply
    120,064.28x = 165,683.34 × 66,348.14
  4. Step 4: Simplify right side
    120,064.28x = 10,992,780,609.57
  5. Step 5: Solve for x
    x = 10,992,780,609.57/120,064.28
  6. Step 6: Final answer
    x = 91,557.46

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1.5x scale

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.