Home / 200,963.40-301,445.10-67,811.55

Finding the Fourth Proportional to 200,963.40, 301,445.10 and 67,811.55

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Solution

The fourth proportional to 200,963.40, 301,445.10 and 67,811.55 is: 101,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,963.40 : 301,445.10 = 67,811.55 : x
  2. Step 2: Convert to fraction form
    200,963.40/301,445.10 = 67,811.55/x
  3. Step 3: Cross multiply
    200,963.40x = 301,445.10 × 67,811.55
  4. Step 4: Simplify right side
    200,963.40x = 20,441,459,470.91
  5. Step 5: Solve for x
    x = 20,441,459,470.91/200,963.40
  6. Step 6: Final answer
    x = 101,717.33

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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.