Home / 179,129.52-268,285.80-85,701.36

Finding the Fourth Proportional to 179,129.52, 268,285.80 and 85,701.36

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Solution

The fourth proportional to 179,129.52, 268,285.80 and 85,701.36 is: 128,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,129.52 : 268,285.80 = 85,701.36 : x
  2. Step 2: Convert to fraction form
    179,129.52/268,285.80 = 85,701.36/x
  3. Step 3: Cross multiply
    179,129.52x = 268,285.80 × 85,701.36
  4. Step 4: Simplify right side
    179,129.52x = 22,992,457,928.69
  5. Step 5: Solve for x
    x = 22,992,457,928.69/179,129.52
  6. Step 6: Final answer
    x = 128,356.61

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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.