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Finding the Fourth Proportional to 143,599, 198,098.58 and 101,180.92

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Solution

The fourth proportional to 143,599, 198,098.58 and 101,180.92 is: 139,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,599 : 198,098.58 = 101,180.92 : x
  2. Step 2: Convert to fraction form
    143,599/198,098.58 = 101,180.92/x
  3. Step 3: Cross multiply
    143,599x = 198,098.58 × 101,180.92
  4. Step 4: Simplify right side
    143,599x = 20,043,796,575.09
  5. Step 5: Solve for x
    x = 20,043,796,575.09/143,599
  6. Step 6: Final answer
    x = 139,581.73

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1.5x scale

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.