Home / 115,290.36-171,789.45-102,713.76

Finding the Fourth Proportional to 115,290.36, 171,789.45 and 102,713.76

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Solution

The fourth proportional to 115,290.36, 171,789.45 and 102,713.76 is: 153,049.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,290.36 : 171,789.45 = 102,713.76 : x
  2. Step 2: Convert to fraction form
    115,290.36/171,789.45 = 102,713.76/x
  3. Step 3: Cross multiply
    115,290.36x = 171,789.45 × 102,713.76
  4. Step 4: Simplify right side
    115,290.36x = 17,645,140,337.83
  5. Step 5: Solve for x
    x = 17,645,140,337.83/115,290.36
  6. Step 6: Final answer
    x = 153,049.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.