Home / 126,288.48-174,246.56-72,588.80

Finding the Fourth Proportional to 126,288.48, 174,246.56 and 72,588.80

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Solution

The fourth proportional to 126,288.48, 174,246.56 and 72,588.80 is: 100,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,288.48 : 174,246.56 = 72,588.80 : x
  2. Step 2: Convert to fraction form
    126,288.48/174,246.56 = 72,588.80/x
  3. Step 3: Cross multiply
    126,288.48x = 174,246.56 × 72,588.80
  4. Step 4: Simplify right side
    126,288.48x = 12,648,348,694.53
  5. Step 5: Solve for x
    x = 12,648,348,694.53/126,288.48
  6. Step 6: Final answer
    x = 100,154.41

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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.