Home / 147,724.78-221,256.69-68,720.62

Finding the Fourth Proportional to 147,724.78, 221,256.69 and 68,720.62

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Solution

The fourth proportional to 147,724.78, 221,256.69 and 68,720.62 is: 102,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,724.78 : 221,256.69 = 68,720.62 : x
  2. Step 2: Convert to fraction form
    147,724.78/221,256.69 = 68,720.62/x
  3. Step 3: Cross multiply
    147,724.78x = 221,256.69 × 68,720.62
  4. Step 4: Simplify right side
    147,724.78x = 15,204,896,915.95
  5. Step 5: Solve for x
    x = 15,204,896,915.95/147,724.78
  6. Step 6: Final answer
    x = 102,927.19

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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.