Home / 126,717.77-174,801.55-81,402.88

Finding the Fourth Proportional to 126,717.77, 174,801.55 and 81,402.88

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Solution

The fourth proportional to 126,717.77, 174,801.55 and 81,402.88 is: 112,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,717.77 : 174,801.55 = 81,402.88 : x
  2. Step 2: Convert to fraction form
    126,717.77/174,801.55 = 81,402.88/x
  3. Step 3: Cross multiply
    126,717.77x = 174,801.55 × 81,402.88
  4. Step 4: Simplify right side
    126,717.77x = 14,229,348,957.95
  5. Step 5: Solve for x
    x = 14,229,348,957.95/126,717.77
  6. Step 6: Final answer
    x = 112,291.66

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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.