Home / 99,730.20-149,595.30-40,608.30

Finding the Fourth Proportional to 99,730.20, 149,595.30 and 40,608.30

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Solution

The fourth proportional to 99,730.20, 149,595.30 and 40,608.30 is: 60,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,730.20 : 149,595.30 = 40,608.30 : x
  2. Step 2: Convert to fraction form
    99,730.20/149,595.30 = 40,608.30/x
  3. Step 3: Cross multiply
    99,730.20x = 149,595.30 × 40,608.30
  4. Step 4: Simplify right side
    99,730.20x = 6,074,810,820.99
  5. Step 5: Solve for x
    x = 6,074,810,820.99/99,730.20
  6. Step 6: Final answer
    x = 60,912.45

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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.