Home / 130,251.54-179,756.78-72,896.61

Finding the Fourth Proportional to 130,251.54, 179,756.78 and 72,896.61

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Solution

The fourth proportional to 130,251.54, 179,756.78 and 72,896.61 is: 100,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,251.54 : 179,756.78 = 72,896.61 : x
  2. Step 2: Convert to fraction form
    130,251.54/179,756.78 = 72,896.61/x
  3. Step 3: Cross multiply
    130,251.54x = 179,756.78 × 72,896.61
  4. Step 4: Simplify right side
    130,251.54x = 13,103,659,886.52
  5. Step 5: Solve for x
    x = 13,103,659,886.52/130,251.54
  6. Step 6: Final answer
    x = 100,602.73

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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.