Home / 99,039.16-148,305.18-54,616.63

Finding the Fourth Proportional to 99,039.16, 148,305.18 and 54,616.63

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Solution

The fourth proportional to 99,039.16, 148,305.18 and 54,616.63 is: 81,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,039.16 : 148,305.18 = 54,616.63 : x
  2. Step 2: Convert to fraction form
    99,039.16/148,305.18 = 54,616.63/x
  3. Step 3: Cross multiply
    99,039.16x = 148,305.18 × 54,616.63
  4. Step 4: Simplify right side
    99,039.16x = 8,099,928,948.05
  5. Step 5: Solve for x
    x = 8,099,928,948.05/99,039.16
  6. Step 6: Final answer
    x = 81,785.12

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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.