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Finding the Fourth Proportional to 168,809.70, 253,214.55 and 109,712.10

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Solution

The fourth proportional to 168,809.70, 253,214.55 and 109,712.10 is: 164,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,809.70 : 253,214.55 = 109,712.10 : x
  2. Step 2: Convert to fraction form
    168,809.70/253,214.55 = 109,712.10/x
  3. Step 3: Cross multiply
    168,809.70x = 253,214.55 × 109,712.10
  4. Step 4: Simplify right side
    168,809.70x = 27,780,700,031.06
  5. Step 5: Solve for x
    x = 27,780,700,031.06/168,809.70
  6. Step 6: Final answer
    x = 164,568.15

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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.