Home / 136,329.20-204,503.40-77,193.20

Finding the Fourth Proportional to 136,329.20, 204,503.40 and 77,193.20

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Solution

The fourth proportional to 136,329.20, 204,503.40 and 77,193.20 is: 115,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,329.20 : 204,503.40 = 77,193.20 : x
  2. Step 2: Convert to fraction form
    136,329.20/204,503.40 = 77,193.20/x
  3. Step 3: Cross multiply
    136,329.20x = 204,503.40 × 77,193.20
  4. Step 4: Simplify right side
    136,329.20x = 15,786,271,856.88
  5. Step 5: Solve for x
    x = 15,786,271,856.88/136,329.20
  6. Step 6: Final answer
    x = 115,795.24

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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.