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Finding the Fourth Proportional to 147,871, 204,062.10 and 80,803

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Solution

The fourth proportional to 147,871, 204,062.10 and 80,803 is: 111,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,871 : 204,062.10 = 80,803 : x
  2. Step 2: Convert to fraction form
    147,871/204,062.10 = 80,803/x
  3. Step 3: Cross multiply
    147,871x = 204,062.10 × 80,803
  4. Step 4: Simplify right side
    147,871x = 16,488,829,866.30
  5. Step 5: Solve for x
    x = 16,488,829,866.30/147,871
  6. Step 6: Final answer
    x = 111,508.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.