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Finding the Fourth Proportional to 108,142.70, 162,209.13 and 37,071.64

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Solution

The fourth proportional to 108,142.70, 162,209.13 and 37,071.64 is: 55,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,142.70 : 162,209.13 = 37,071.64 : x
  2. Step 2: Convert to fraction form
    108,142.70/162,209.13 = 37,071.64/x
  3. Step 3: Cross multiply
    108,142.70x = 162,209.13 × 37,071.64
  4. Step 4: Simplify right side
    108,142.70x = 6,013,358,744.34
  5. Step 5: Solve for x
    x = 6,013,358,744.34/108,142.70
  6. Step 6: Final answer
    x = 55,605.78

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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.