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Finding the Fourth Proportional to 147,552, 203,621.76 and 80,484

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Solution

The fourth proportional to 147,552, 203,621.76 and 80,484 is: 111,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,552 : 203,621.76 = 80,484 : x
  2. Step 2: Convert to fraction form
    147,552/203,621.76 = 80,484/x
  3. Step 3: Cross multiply
    147,552x = 203,621.76 × 80,484
  4. Step 4: Simplify right side
    147,552x = 16,388,293,731.84
  5. Step 5: Solve for x
    x = 16,388,293,731.84/147,552
  6. Step 6: Final answer
    x = 111,067.92

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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.