Home / 179,149.10-268,769.82-128,606.72

Finding the Fourth Proportional to 179,149.10, 268,769.82 and 128,606.72

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Solution

The fourth proportional to 179,149.10, 268,769.82 and 128,606.72 is: 192,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,149.10 : 268,769.82 = 128,606.72 : x
  2. Step 2: Convert to fraction form
    179,149.10/268,769.82 = 128,606.72/x
  3. Step 3: Cross multiply
    179,149.10x = 268,769.82 × 128,606.72
  4. Step 4: Simplify right side
    179,149.10x = 34,565,603,641.34
  5. Step 5: Solve for x
    x = 34,565,603,641.34/179,149.10
  6. Step 6: Final answer
    x = 192,943.22

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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.