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Finding the Fourth Proportional to 147,656, 221,481.92 and 68,726.08

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Solution

The fourth proportional to 147,656, 221,481.92 and 68,726.08 is: 103,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,656 : 221,481.92 = 68,726.08 : x
  2. Step 2: Convert to fraction form
    147,656/221,481.92 = 68,726.08/x
  3. Step 3: Cross multiply
    147,656x = 221,481.92 × 68,726.08
  4. Step 4: Simplify right side
    147,656x = 15,221,584,152.47
  5. Step 5: Solve for x
    x = 15,221,584,152.47/147,656
  6. Step 6: Final answer
    x = 103,088.15

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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.