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Finding the Fourth Proportional to 169,402.69, 254,127.50 and 57,115.05

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Solution

The fourth proportional to 169,402.69, 254,127.50 and 57,115.05 is: 85,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,402.69 : 254,127.50 = 57,115.05 : x
  2. Step 2: Convert to fraction form
    169,402.69/254,127.50 = 57,115.05/x
  3. Step 3: Cross multiply
    169,402.69x = 254,127.50 × 57,115.05
  4. Step 4: Simplify right side
    169,402.69x = 14,514,504,868.88
  5. Step 5: Solve for x
    x = 14,514,504,868.88/169,402.69
  6. Step 6: Final answer
    x = 85,680.49

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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.