Home / 136,280.45-204,422.48-42,786.20

Finding the Fourth Proportional to 136,280.45, 204,422.48 and 42,786.20

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Solution

The fourth proportional to 136,280.45, 204,422.48 and 42,786.20 is: 64,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,280.45 : 204,422.48 = 42,786.20 : x
  2. Step 2: Convert to fraction form
    136,280.45/204,422.48 = 42,786.20/x
  3. Step 3: Cross multiply
    136,280.45x = 204,422.48 × 42,786.20
  4. Step 4: Simplify right side
    136,280.45x = 8,746,459,877.73
  5. Step 5: Solve for x
    x = 8,746,459,877.73/136,280.45
  6. Step 6: Final answer
    x = 64,179.86

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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.