Home / 157,480.20-236,220.30-78,584.18

Finding the Fourth Proportional to 157,480.20, 236,220.30 and 78,584.18

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Solution

The fourth proportional to 157,480.20, 236,220.30 and 78,584.18 is: 117,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,480.20 : 236,220.30 = 78,584.18 : x
  2. Step 2: Convert to fraction form
    157,480.20/236,220.30 = 78,584.18/x
  3. Step 3: Cross multiply
    157,480.20x = 236,220.30 × 78,584.18
  4. Step 4: Simplify right side
    157,480.20x = 18,563,177,393.75
  5. Step 5: Solve for x
    x = 18,563,177,393.75/157,480.20
  6. Step 6: Final answer
    x = 117,876.26

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1.5x scale

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.