Home / 118,829.43-178,228.35-42,920.18

Finding the Fourth Proportional to 118,829.43, 178,228.35 and 42,920.18

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Solution

The fourth proportional to 118,829.43, 178,228.35 and 42,920.18 is: 64,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829.43 : 178,228.35 = 42,920.18 : x
  2. Step 2: Convert to fraction form
    118,829.43/178,228.35 = 42,920.18/x
  3. Step 3: Cross multiply
    118,829.43x = 178,228.35 × 42,920.18
  4. Step 4: Simplify right side
    118,829.43x = 7,649,592,640.32
  5. Step 5: Solve for x
    x = 7,649,592,640.32/118,829.43
  6. Step 6: Final answer
    x = 64,374.56

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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.