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Finding the Fourth Proportional to 149,247.54, 223,721.73 and 69,341.72

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Solution

The fourth proportional to 149,247.54, 223,721.73 and 69,341.72 is: 103,943.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,247.54 : 223,721.73 = 69,341.72 : x
  2. Step 2: Convert to fraction form
    149,247.54/223,721.73 = 69,341.72/x
  3. Step 3: Cross multiply
    149,247.54x = 223,721.73 × 69,341.72
  4. Step 4: Simplify right side
    149,247.54x = 15,513,248,440.97
  5. Step 5: Solve for x
    x = 15,513,248,440.97/149,247.54
  6. Step 6: Final answer
    x = 103,943.08

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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.