Home / 100,856.39-151,298.45-34,278.65

Finding the Fourth Proportional to 100,856.39, 151,298.45 and 34,278.65

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Solution

The fourth proportional to 100,856.39, 151,298.45 and 34,278.65 is: 51,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,856.39 : 151,298.45 = 34,278.65 : x
  2. Step 2: Convert to fraction form
    100,856.39/151,298.45 = 34,278.65/x
  3. Step 3: Cross multiply
    100,856.39x = 151,298.45 × 34,278.65
  4. Step 4: Simplify right side
    100,856.39x = 5,186,305,685.21
  5. Step 5: Solve for x
    x = 5,186,305,685.21/100,856.39
  6. Step 6: Final answer
    x = 51,422.68

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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.