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Finding the Fourth Proportional to 113,308.17, 169,809.11 and 43,149.21

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Solution

The fourth proportional to 113,308.17, 169,809.11 and 43,149.21 is: 64,665.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,308.17 : 169,809.11 = 43,149.21 : x
  2. Step 2: Convert to fraction form
    113,308.17/169,809.11 = 43,149.21/x
  3. Step 3: Cross multiply
    113,308.17x = 169,809.11 × 43,149.21
  4. Step 4: Simplify right side
    113,308.17x = 7,327,128,256.58
  5. Step 5: Solve for x
    x = 7,327,128,256.58/113,308.17
  6. Step 6: Final answer
    x = 64,665.49

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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.