Home / 126,249.42-174,312.27-78,524.22

Finding the Fourth Proportional to 126,249.42, 174,312.27 and 78,524.22

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Solution

The fourth proportional to 126,249.42, 174,312.27 and 78,524.22 is: 108,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,249.42 : 174,312.27 = 78,524.22 : x
  2. Step 2: Convert to fraction form
    126,249.42/174,312.27 = 78,524.22/x
  3. Step 3: Cross multiply
    126,249.42x = 174,312.27 × 78,524.22
  4. Step 4: Simplify right side
    126,249.42x = 13,687,735,038.18
  5. Step 5: Solve for x
    x = 13,687,735,038.18/126,249.42
  6. Step 6: Final answer
    x = 108,418.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.