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Finding the Fourth Proportional to 118,801.52, 178,218.66 and 39,921.86

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Solution

The fourth proportional to 118,801.52, 178,218.66 and 39,921.86 is: 59,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,801.52 : 178,218.66 = 39,921.86 : x
  2. Step 2: Convert to fraction form
    118,801.52/178,218.66 = 39,921.86/x
  3. Step 3: Cross multiply
    118,801.52x = 178,218.66 × 39,921.86
  4. Step 4: Simplify right side
    118,801.52x = 7,114,820,393.91
  5. Step 5: Solve for x
    x = 7,114,820,393.91/118,801.52
  6. Step 6: Final answer
    x = 59,888.29

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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.