Home / 126,540.79-174,633.95-72,824.63

Finding the Fourth Proportional to 126,540.79, 174,633.95 and 72,824.63

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Solution

The fourth proportional to 126,540.79, 174,633.95 and 72,824.63 is: 100,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,540.79 : 174,633.95 = 72,824.63 : x
  2. Step 2: Convert to fraction form
    126,540.79/174,633.95 = 72,824.63/x
  3. Step 3: Cross multiply
    126,540.79x = 174,633.95 × 72,824.63
  4. Step 4: Simplify right side
    126,540.79x = 12,717,652,794.19
  5. Step 5: Solve for x
    x = 12,717,652,794.19/126,540.79
  6. Step 6: Final answer
    x = 100,502.40

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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.