Home / 120,052.42-165,670.06-66,336.30

Finding the Fourth Proportional to 120,052.42, 165,670.06 and 66,336.30

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Solution

The fourth proportional to 120,052.42, 165,670.06 and 66,336.30 is: 91,542.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,052.42 : 165,670.06 = 66,336.30 : x
  2. Step 2: Convert to fraction form
    120,052.42/165,670.06 = 66,336.30/x
  3. Step 3: Cross multiply
    120,052.42x = 165,670.06 × 66,336.30
  4. Step 4: Simplify right side
    120,052.42x = 10,989,938,801.18
  5. Step 5: Solve for x
    x = 10,989,938,801.18/120,052.42
  6. Step 6: Final answer
    x = 91,542.83

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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.