Home / 145,454.12-200,612.83-99,540.96

Finding the Fourth Proportional to 145,454.12, 200,612.83 and 99,540.96

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Solution

The fourth proportional to 145,454.12, 200,612.83 and 99,540.96 is: 137,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,454.12 : 200,612.83 = 99,540.96 : x
  2. Step 2: Convert to fraction form
    145,454.12/200,612.83 = 99,540.96/x
  3. Step 3: Cross multiply
    145,454.12x = 200,612.83 × 99,540.96
  4. Step 4: Simplify right side
    145,454.12x = 19,969,194,002.61
  5. Step 5: Solve for x
    x = 19,969,194,002.61/145,454.12
  6. Step 6: Final answer
    x = 137,288.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.