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Finding the Fourth Proportional to 101,215, 151,915.08 and 51,329.52

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Solution

The fourth proportional to 101,215, 151,915.08 and 51,329.52 is: 77,041.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,215 : 151,915.08 = 51,329.52 : x
  2. Step 2: Convert to fraction form
    101,215/151,915.08 = 51,329.52/x
  3. Step 3: Cross multiply
    101,215x = 151,915.08 × 51,329.52
  4. Step 4: Simplify right side
    101,215x = 7,797,728,137.16
  5. Step 5: Solve for x
    x = 7,797,728,137.16/101,215
  6. Step 6: Final answer
    x = 77,041.23

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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.