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Finding the Fourth Proportional to 143,598, 198,097.20 and 101,179.92

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Solution

The fourth proportional to 143,598, 198,097.20 and 101,179.92 is: 139,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,598 : 198,097.20 = 101,179.92 : x
  2. Step 2: Convert to fraction form
    143,598/198,097.20 = 101,179.92/x
  3. Step 3: Cross multiply
    143,598x = 198,097.20 × 101,179.92
  4. Step 4: Simplify right side
    143,598x = 20,043,458,848.22
  5. Step 5: Solve for x
    x = 20,043,458,848.22/143,598
  6. Step 6: Final answer
    x = 139,580.35

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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.