Home / 134,144.40-201,216.60-81,000.30

Finding the Fourth Proportional to 134,144.40, 201,216.60 and 81,000.30

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Solution

The fourth proportional to 134,144.40, 201,216.60 and 81,000.30 is: 121,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,144.40 : 201,216.60 = 81,000.30 : x
  2. Step 2: Convert to fraction form
    134,144.40/201,216.60 = 81,000.30/x
  3. Step 3: Cross multiply
    134,144.40x = 201,216.60 × 81,000.30
  4. Step 4: Simplify right side
    134,144.40x = 16,298,604,964.98
  5. Step 5: Solve for x
    x = 16,298,604,964.98/134,144.40
  6. Step 6: Final answer
    x = 121,500.45

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Similar ratio
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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.