Home / 169,091.56-253,794.78-86,047.72

Finding the Fourth Proportional to 169,091.56, 253,794.78 and 86,047.72

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Solution

The fourth proportional to 169,091.56, 253,794.78 and 86,047.72 is: 129,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,091.56 : 253,794.78 = 86,047.72 : x
  2. Step 2: Convert to fraction form
    169,091.56/253,794.78 = 86,047.72/x
  3. Step 3: Cross multiply
    169,091.56x = 253,794.78 × 86,047.72
  4. Step 4: Simplify right side
    169,091.56x = 21,838,462,166.90
  5. Step 5: Solve for x
    x = 21,838,462,166.90/169,091.56
  6. Step 6: Final answer
    x = 129,151.70

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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.