Home / 179,609.21-247,877.33-103,138.32

Finding the Fourth Proportional to 179,609.21, 247,877.33 and 103,138.32

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Solution

The fourth proportional to 179,609.21, 247,877.33 and 103,138.32 is: 142,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,609.21 : 247,877.33 = 103,138.32 : x
  2. Step 2: Convert to fraction form
    179,609.21/247,877.33 = 103,138.32/x
  3. Step 3: Cross multiply
    179,609.21x = 247,877.33 × 103,138.32
  4. Step 4: Simplify right side
    179,609.21x = 25,565,651,382.29
  5. Step 5: Solve for x
    x = 25,565,651,382.29/179,609.21
  6. Step 6: Final answer
    x = 142,340.43

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1.5x scale

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.