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Finding the Fourth Proportional to 168,649.20, 253,168.20 and 102,164.40

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Solution

The fourth proportional to 168,649.20, 253,168.20 and 102,164.40 is: 153,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,649.20 : 253,168.20 = 102,164.40 : x
  2. Step 2: Convert to fraction form
    168,649.20/253,168.20 = 102,164.40/x
  3. Step 3: Cross multiply
    168,649.20x = 253,168.20 × 102,164.40
  4. Step 4: Simplify right side
    168,649.20x = 25,864,777,252.08
  5. Step 5: Solve for x
    x = 25,864,777,252.08/168,649.20
  6. Step 6: Final answer
    x = 153,364.36

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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.