Home / 126,513.64-174,604.98-72,781.48

Finding the Fourth Proportional to 126,513.64, 174,604.98 and 72,781.48

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Solution

The fourth proportional to 126,513.64, 174,604.98 and 72,781.48 is: 100,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,513.64 : 174,604.98 = 72,781.48 : x
  2. Step 2: Convert to fraction form
    126,513.64/174,604.98 = 72,781.48/x
  3. Step 3: Cross multiply
    126,513.64x = 174,604.98 × 72,781.48
  4. Step 4: Simplify right side
    126,513.64x = 12,708,008,859.77
  5. Step 5: Solve for x
    x = 12,708,008,859.77/126,513.64
  6. Step 6: Final answer
    x = 100,447.74

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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.