Home / 89,764.20-134,646.30-75,940.20

Finding the Fourth Proportional to 89,764.20, 134,646.30 and 75,940.20

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Solution

The fourth proportional to 89,764.20, 134,646.30 and 75,940.20 is: 113,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,764.20 : 134,646.30 = 75,940.20 : x
  2. Step 2: Convert to fraction form
    89,764.20/134,646.30 = 75,940.20/x
  3. Step 3: Cross multiply
    89,764.20x = 134,646.30 × 75,940.20
  4. Step 4: Simplify right side
    89,764.20x = 10,225,066,951.26
  5. Step 5: Solve for x
    x = 10,225,066,951.26/89,764.20
  6. Step 6: Final answer
    x = 113,910.30

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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.