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Finding the Fourth Proportional to 147,021, 202,888.98 and 79,953

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Solution

The fourth proportional to 147,021, 202,888.98 and 79,953 is: 110,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,021 : 202,888.98 = 79,953 : x
  2. Step 2: Convert to fraction form
    147,021/202,888.98 = 79,953/x
  3. Step 3: Cross multiply
    147,021x = 202,888.98 × 79,953
  4. Step 4: Simplify right side
    147,021x = 16,221,582,617.94
  5. Step 5: Solve for x
    x = 16,221,582,617.94/147,021
  6. Step 6: Final answer
    x = 110,335.14

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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.