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Finding the Fourth Proportional to 147,650.10, 221,147.10 and 121,406.10

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Solution

The fourth proportional to 147,650.10, 221,147.10 and 121,406.10 is: 181,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,650.10 : 221,147.10 = 121,406.10 : x
  2. Step 2: Convert to fraction form
    147,650.10/221,147.10 = 121,406.10/x
  3. Step 3: Cross multiply
    147,650.10x = 221,147.10 × 121,406.10
  4. Step 4: Simplify right side
    147,650.10x = 26,848,606,937.31
  5. Step 5: Solve for x
    x = 26,848,606,937.31/147,650.10
  6. Step 6: Final answer
    x = 181,839.41

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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.