Home / 99,738.91-149,479.08-40,505.77

Finding the Fourth Proportional to 99,738.91, 149,479.08 and 40,505.77

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Solution

The fourth proportional to 99,738.91, 149,479.08 and 40,505.77 is: 60,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,738.91 : 149,479.08 = 40,505.77 : x
  2. Step 2: Convert to fraction form
    99,738.91/149,479.08 = 40,505.77/x
  3. Step 3: Cross multiply
    99,738.91x = 149,479.08 × 40,505.77
  4. Step 4: Simplify right side
    99,738.91x = 6,054,765,234.29
  5. Step 5: Solve for x
    x = 6,054,765,234.29/99,738.91
  6. Step 6: Final answer
    x = 60,706.15

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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.