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Finding the Fourth Proportional to 118,630.86, 177,987.33 and 74,204.73

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Solution

The fourth proportional to 118,630.86, 177,987.33 and 74,204.73 is: 111,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.86 : 177,987.33 = 74,204.73 : x
  2. Step 2: Convert to fraction form
    118,630.86/177,987.33 = 74,204.73/x
  3. Step 3: Cross multiply
    118,630.86x = 177,987.33 × 74,204.73
  4. Step 4: Simplify right side
    118,630.86x = 13,207,501,766.07
  5. Step 5: Solve for x
    x = 13,207,501,766.07/118,630.86
  6. Step 6: Final answer
    x = 111,332.77

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1.5x scale

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.