Home / 157,544.40-236,470.20-78,747.60

Finding the Fourth Proportional to 157,544.40, 236,470.20 and 78,747.60

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Solution

The fourth proportional to 157,544.40, 236,470.20 and 78,747.60 is: 118,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,544.40 : 236,470.20 = 78,747.60 : x
  2. Step 2: Convert to fraction form
    157,544.40/236,470.20 = 78,747.60/x
  3. Step 3: Cross multiply
    157,544.40x = 236,470.20 × 78,747.60
  4. Step 4: Simplify right side
    157,544.40x = 18,621,460,721.52
  5. Step 5: Solve for x
    x = 18,621,460,721.52/157,544.40
  6. Step 6: Final answer
    x = 118,198.18

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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.