Home / 126,636.28-174,767.56-72,189.75

Finding the Fourth Proportional to 126,636.28, 174,767.56 and 72,189.75

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Solution

The fourth proportional to 126,636.28, 174,767.56 and 72,189.75 is: 99,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,636.28 : 174,767.56 = 72,189.75 : x
  2. Step 2: Convert to fraction form
    126,636.28/174,767.56 = 72,189.75/x
  3. Step 3: Cross multiply
    126,636.28x = 174,767.56 × 72,189.75
  4. Step 4: Simplify right side
    126,636.28x = 12,616,425,619.75
  5. Step 5: Solve for x
    x = 12,616,425,619.75/126,636.28
  6. Step 6: Final answer
    x = 99,627.26

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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.