Home / 99,433.20-148,785.30-73,189.20

Finding the Fourth Proportional to 99,433.20, 148,785.30 and 73,189.20

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Solution

The fourth proportional to 99,433.20, 148,785.30 and 73,189.20 is: 109,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,433.20 : 148,785.30 = 73,189.20 : x
  2. Step 2: Convert to fraction form
    99,433.20/148,785.30 = 73,189.20/x
  3. Step 3: Cross multiply
    99,433.20x = 148,785.30 × 73,189.20
  4. Step 4: Simplify right side
    99,433.20x = 10,889,477,078.76
  5. Step 5: Solve for x
    x = 10,889,477,078.76/99,433.20
  6. Step 6: Final answer
    x = 109,515.50

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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.