Home / 135,938.18-204,031.80-72,829.55

Finding the Fourth Proportional to 135,938.18, 204,031.80 and 72,829.55

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Solution

The fourth proportional to 135,938.18, 204,031.80 and 72,829.55 is: 109,311.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,938.18 : 204,031.80 = 72,829.55 : x
  2. Step 2: Convert to fraction form
    135,938.18/204,031.80 = 72,829.55/x
  3. Step 3: Cross multiply
    135,938.18x = 204,031.80 × 72,829.55
  4. Step 4: Simplify right side
    135,938.18x = 14,859,544,179.69
  5. Step 5: Solve for x
    x = 14,859,544,179.69/135,938.18
  6. Step 6: Final answer
    x = 109,311.04

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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.