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Finding the Fourth Proportional to 169,979.20, 254,750.10 and 103,348.60

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Solution

The fourth proportional to 169,979.20, 254,750.10 and 103,348.60 is: 154,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,979.20 : 254,750.10 = 103,348.60 : x
  2. Step 2: Convert to fraction form
    169,979.20/254,750.10 = 103,348.60/x
  3. Step 3: Cross multiply
    169,979.20x = 254,750.10 × 103,348.60
  4. Step 4: Simplify right side
    169,979.20x = 26,328,066,184.86
  5. Step 5: Solve for x
    x = 26,328,066,184.86/169,979.20
  6. Step 6: Final answer
    x = 154,889.93

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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.