Home / 118,947.90-178,422.12-40,117.49

Finding the Fourth Proportional to 118,947.90, 178,422.12 and 40,117.49

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Solution

The fourth proportional to 118,947.90, 178,422.12 and 40,117.49 is: 60,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,947.90 : 178,422.12 = 40,117.49 : x
  2. Step 2: Convert to fraction form
    118,947.90/178,422.12 = 40,117.49/x
  3. Step 3: Cross multiply
    118,947.90x = 178,422.12 × 40,117.49
  4. Step 4: Simplify right side
    118,947.90x = 7,157,846,722.77
  5. Step 5: Solve for x
    x = 7,157,846,722.77/118,947.90
  6. Step 6: Final answer
    x = 60,176.32

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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.