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Finding the Fourth Proportional to 109,261, 150,777.70 and 60,862.60

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Solution

The fourth proportional to 109,261, 150,777.70 and 60,862.60 is: 83,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,261 : 150,777.70 = 60,862.60 : x
  2. Step 2: Convert to fraction form
    109,261/150,777.70 = 60,862.60/x
  3. Step 3: Cross multiply
    109,261x = 150,777.70 × 60,862.60
  4. Step 4: Simplify right side
    109,261x = 9,176,722,844.02
  5. Step 5: Solve for x
    x = 9,176,722,844.02/109,261
  6. Step 6: Final answer
    x = 83,989.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.