Home / 111,741.60-167,612.40-66,835.20

Finding the Fourth Proportional to 111,741.60, 167,612.40 and 66,835.20

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Solution

The fourth proportional to 111,741.60, 167,612.40 and 66,835.20 is: 100,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,741.60 : 167,612.40 = 66,835.20 : x
  2. Step 2: Convert to fraction form
    111,741.60/167,612.40 = 66,835.20/x
  3. Step 3: Cross multiply
    111,741.60x = 167,612.40 × 66,835.20
  4. Step 4: Simplify right side
    111,741.60x = 11,202,408,276.48
  5. Step 5: Solve for x
    x = 11,202,408,276.48/111,741.60
  6. Step 6: Final answer
    x = 100,252.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.