Home / 115,618.62-159,579.44-70,287

Finding the Fourth Proportional to 115,618.62, 159,579.44 and 70,287

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Solution

The fourth proportional to 115,618.62, 159,579.44 and 70,287 is: 97,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,618.62 : 159,579.44 = 70,287 : x
  2. Step 2: Convert to fraction form
    115,618.62/159,579.44 = 70,287/x
  3. Step 3: Cross multiply
    115,618.62x = 159,579.44 × 70,287
  4. Step 4: Simplify right side
    115,618.62x = 11,216,359,747.85
  5. Step 5: Solve for x
    x = 11,216,359,747.85/115,618.62
  6. Step 6: Final answer
    x = 97,011.71

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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.