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Finding the Fourth Proportional to 147,906.10, 221,859.15 and 69,028.30

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Solution

The fourth proportional to 147,906.10, 221,859.15 and 69,028.30 is: 103,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,906.10 : 221,859.15 = 69,028.30 : x
  2. Step 2: Convert to fraction form
    147,906.10/221,859.15 = 69,028.30/x
  3. Step 3: Cross multiply
    147,906.10x = 221,859.15 × 69,028.30
  4. Step 4: Simplify right side
    147,906.10x = 15,314,559,963.95
  5. Step 5: Solve for x
    x = 15,314,559,963.95/147,906.10
  6. Step 6: Final answer
    x = 103,542.45

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1.5x scale

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.