Home / 99,520.50-149,041.92-87,552.68

Finding the Fourth Proportional to 99,520.50, 149,041.92 and 87,552.68

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Solution

The fourth proportional to 99,520.50, 149,041.92 and 87,552.68 is: 131,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,520.50 : 149,041.92 = 87,552.68 : x
  2. Step 2: Convert to fraction form
    99,520.50/149,041.92 = 87,552.68/x
  3. Step 3: Cross multiply
    99,520.50x = 149,041.92 × 87,552.68
  4. Step 4: Simplify right side
    99,520.50x = 13,049,019,528.35
  5. Step 5: Solve for x
    x = 13,049,019,528.35/99,520.50
  6. Step 6: Final answer
    x = 131,118.91

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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.