Home / 155,974.60-234,042.90-72,868.60

Finding the Fourth Proportional to 155,974.60, 234,042.90 and 72,868.60

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Solution

The fourth proportional to 155,974.60, 234,042.90 and 72,868.60 is: 109,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,974.60 : 234,042.90 = 72,868.60 : x
  2. Step 2: Convert to fraction form
    155,974.60/234,042.90 = 72,868.60/x
  3. Step 3: Cross multiply
    155,974.60x = 234,042.90 × 72,868.60
  4. Step 4: Simplify right side
    155,974.60x = 17,054,378,462.94
  5. Step 5: Solve for x
    x = 17,054,378,462.94/155,974.60
  6. Step 6: Final answer
    x = 109,340.74

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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.