Home / 147,418.31-221,174.25-52,646.49

Finding the Fourth Proportional to 147,418.31, 221,174.25 and 52,646.49

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Solution

The fourth proportional to 147,418.31, 221,174.25 and 52,646.49 is: 78,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,418.31 : 221,174.25 = 52,646.49 : x
  2. Step 2: Convert to fraction form
    147,418.31/221,174.25 = 52,646.49/x
  3. Step 3: Cross multiply
    147,418.31x = 221,174.25 × 52,646.49
  4. Step 4: Simplify right side
    147,418.31x = 11,644,047,743.46
  5. Step 5: Solve for x
    x = 11,644,047,743.46/147,418.31
  6. Step 6: Final answer
    x = 78,986.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.