Home / 136,867.11-205,307.95-43,380.15

Finding the Fourth Proportional to 136,867.11, 205,307.95 and 43,380.15

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Solution

The fourth proportional to 136,867.11, 205,307.95 and 43,380.15 is: 65,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,867.11 : 205,307.95 = 43,380.15 : x
  2. Step 2: Convert to fraction form
    136,867.11/205,307.95 = 43,380.15/x
  3. Step 3: Cross multiply
    136,867.11x = 205,307.95 × 43,380.15
  4. Step 4: Simplify right side
    136,867.11x = 8,906,288,532.20
  5. Step 5: Solve for x
    x = 8,906,288,532.20/136,867.11
  6. Step 6: Final answer
    x = 65,072.53

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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.