Home / 194,987.12-292,293.83-82,512.61

Finding the Fourth Proportional to 194,987.12, 292,293.83 and 82,512.61

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Solution

The fourth proportional to 194,987.12, 292,293.83 and 82,512.61 is: 123,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,987.12 : 292,293.83 = 82,512.61 : x
  2. Step 2: Convert to fraction form
    194,987.12/292,293.83 = 82,512.61/x
  3. Step 3: Cross multiply
    194,987.12x = 292,293.83 × 82,512.61
  4. Step 4: Simplify right side
    194,987.12x = 24,117,925,863.18
  5. Step 5: Solve for x
    x = 24,117,925,863.18/194,987.12
  6. Step 6: Final answer
    x = 123,689.84

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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.