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Finding the Fourth Proportional to 147,018, 202,885.56 and 79,950

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Solution

The fourth proportional to 147,018, 202,885.56 and 79,950 is: 110,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,018 : 202,885.56 = 79,950 : x
  2. Step 2: Convert to fraction form
    147,018/202,885.56 = 79,950/x
  3. Step 3: Cross multiply
    147,018x = 202,885.56 × 79,950
  4. Step 4: Simplify right side
    147,018x = 16,220,700,522
  5. Step 5: Solve for x
    x = 16,220,700,522/147,018
  6. Step 6: Final answer
    x = 110,331.39

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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.