Home / 157,727.12-236,393.78-78,863.90

Finding the Fourth Proportional to 157,727.12, 236,393.78 and 78,863.90

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Solution

The fourth proportional to 157,727.12, 236,393.78 and 78,863.90 is: 118,197.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,727.12 : 236,393.78 = 78,863.90 : x
  2. Step 2: Convert to fraction form
    157,727.12/236,393.78 = 78,863.90/x
  3. Step 3: Cross multiply
    157,727.12x = 236,393.78 × 78,863.90
  4. Step 4: Simplify right side
    157,727.12x = 18,642,933,850.25
  5. Step 5: Solve for x
    x = 18,642,933,850.25/157,727.12
  6. Step 6: Final answer
    x = 118,197.39

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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.