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Finding the Fourth Proportional to 108,440.68, 162,424.11 and 45,068.66

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Solution

The fourth proportional to 108,440.68, 162,424.11 and 45,068.66 is: 67,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,440.68 : 162,424.11 = 45,068.66 : x
  2. Step 2: Convert to fraction form
    108,440.68/162,424.11 = 45,068.66/x
  3. Step 3: Cross multiply
    108,440.68x = 162,424.11 × 45,068.66
  4. Step 4: Simplify right side
    108,440.68x = 7,320,236,989.39
  5. Step 5: Solve for x
    x = 7,320,236,989.39/108,440.68
  6. Step 6: Final answer
    x = 67,504.53

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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.