Home / 185,460.60-278,263.80-73,121.70

Finding the Fourth Proportional to 185,460.60, 278,263.80 and 73,121.70

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Solution

The fourth proportional to 185,460.60, 278,263.80 and 73,121.70 is: 109,711.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,460.60 : 278,263.80 = 73,121.70 : x
  2. Step 2: Convert to fraction form
    185,460.60/278,263.80 = 73,121.70/x
  3. Step 3: Cross multiply
    185,460.60x = 278,263.80 × 73,121.70
  4. Step 4: Simplify right side
    185,460.60x = 20,347,122,104.46
  5. Step 5: Solve for x
    x = 20,347,122,104.46/185,460.60
  6. Step 6: Final answer
    x = 109,711.29

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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.