Home / 99,786.80-149,592.16-40,671.92

Finding the Fourth Proportional to 99,786.80, 149,592.16 and 40,671.92

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Solution

The fourth proportional to 99,786.80, 149,592.16 and 40,671.92 is: 60,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,786.80 : 149,592.16 = 40,671.92 : x
  2. Step 2: Convert to fraction form
    99,786.80/149,592.16 = 40,671.92/x
  3. Step 3: Cross multiply
    99,786.80x = 149,592.16 × 40,671.92
  4. Step 4: Simplify right side
    99,786.80x = 6,084,200,364.15
  5. Step 5: Solve for x
    x = 6,084,200,364.15/99,786.80
  6. Step 6: Final answer
    x = 60,972.00

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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.