Home / 115,721.40-173,520.36-54,867.72

Finding the Fourth Proportional to 115,721.40, 173,520.36 and 54,867.72

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Solution

The fourth proportional to 115,721.40, 173,520.36 and 54,867.72 is: 82,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,721.40 : 173,520.36 = 54,867.72 : x
  2. Step 2: Convert to fraction form
    115,721.40/173,520.36 = 54,867.72/x
  3. Step 3: Cross multiply
    115,721.40x = 173,520.36 × 54,867.72
  4. Step 4: Simplify right side
    115,721.40x = 9,520,666,526.78
  5. Step 5: Solve for x
    x = 9,520,666,526.78/115,721.40
  6. Step 6: Final answer
    x = 82,272.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.