Home / 89,851.60-134,777.40-74,105.20

Finding the Fourth Proportional to 89,851.60, 134,777.40 and 74,105.20

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Solution

The fourth proportional to 89,851.60, 134,777.40 and 74,105.20 is: 111,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,851.60 : 134,777.40 = 74,105.20 : x
  2. Step 2: Convert to fraction form
    89,851.60/134,777.40 = 74,105.20/x
  3. Step 3: Cross multiply
    89,851.60x = 134,777.40 × 74,105.20
  4. Step 4: Simplify right side
    89,851.60x = 9,987,706,182.48
  5. Step 5: Solve for x
    x = 9,987,706,182.48/89,851.60
  6. Step 6: Final answer
    x = 111,157.80

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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.