Home / 126,453.66-174,451.23-76,123.50

Finding the Fourth Proportional to 126,453.66, 174,451.23 and 76,123.50

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Solution

The fourth proportional to 126,453.66, 174,451.23 and 76,123.50 is: 105,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,453.66 : 174,451.23 = 76,123.50 : x
  2. Step 2: Convert to fraction form
    126,453.66/174,451.23 = 76,123.50/x
  3. Step 3: Cross multiply
    126,453.66x = 174,451.23 × 76,123.50
  4. Step 4: Simplify right side
    126,453.66x = 13,279,838,206.91
  5. Step 5: Solve for x
    x = 13,279,838,206.91/126,453.66
  6. Step 6: Final answer
    x = 105,017.43

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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.