Home / 99,899.50-149,923.20-47,309.11

Finding the Fourth Proportional to 99,899.50, 149,923.20 and 47,309.11

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Solution

The fourth proportional to 99,899.50, 149,923.20 and 47,309.11 is: 70,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,899.50 : 149,923.20 = 47,309.11 : x
  2. Step 2: Convert to fraction form
    99,899.50/149,923.20 = 47,309.11/x
  3. Step 3: Cross multiply
    99,899.50x = 149,923.20 × 47,309.11
  4. Step 4: Simplify right side
    99,899.50x = 7,092,733,160.35
  5. Step 5: Solve for x
    x = 7,092,733,160.35/99,899.50
  6. Step 6: Final answer
    x = 70,998.69

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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.