Home / 126,043.67-173,700.78-90,171.40

Finding the Fourth Proportional to 126,043.67, 173,700.78 and 90,171.40

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Solution

The fourth proportional to 126,043.67, 173,700.78 and 90,171.40 is: 124,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,043.67 : 173,700.78 = 90,171.40 : x
  2. Step 2: Convert to fraction form
    126,043.67/173,700.78 = 90,171.40/x
  3. Step 3: Cross multiply
    126,043.67x = 173,700.78 × 90,171.40
  4. Step 4: Simplify right side
    126,043.67x = 15,662,842,513.69
  5. Step 5: Solve for x
    x = 15,662,842,513.69/126,043.67
  6. Step 6: Final answer
    x = 124,265.21

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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.