Home / 179,609.45-247,877.68-103,138.57

Finding the Fourth Proportional to 179,609.45, 247,877.68 and 103,138.57

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Solution

The fourth proportional to 179,609.45, 247,877.68 and 103,138.57 is: 142,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,609.45 : 247,877.68 = 103,138.57 : x
  2. Step 2: Convert to fraction form
    179,609.45/247,877.68 = 103,138.57/x
  3. Step 3: Cross multiply
    179,609.45x = 247,877.68 × 103,138.57
  4. Step 4: Simplify right side
    179,609.45x = 25,565,748,572.58
  5. Step 5: Solve for x
    x = 25,565,748,572.58/179,609.45
  6. Step 6: Final answer
    x = 142,340.77

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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.