Home / 126,938.69-175,174.31-69,581.20

Finding the Fourth Proportional to 126,938.69, 175,174.31 and 69,581.20

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Solution

The fourth proportional to 126,938.69, 175,174.31 and 69,581.20 is: 96,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.69 : 175,174.31 = 69,581.20 : x
  2. Step 2: Convert to fraction form
    126,938.69/175,174.31 = 69,581.20/x
  3. Step 3: Cross multiply
    126,938.69x = 175,174.31 × 69,581.20
  4. Step 4: Simplify right side
    126,938.69x = 12,188,837,475.19
  5. Step 5: Solve for x
    x = 12,188,837,475.19/126,938.69
  6. Step 6: Final answer
    x = 96,021.45

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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.