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Finding the Fourth Proportional to 101,920.58, 152,800.41 and 64,401.47

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Solution

The fourth proportional to 101,920.58, 152,800.41 and 64,401.47 is: 96,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,920.58 : 152,800.41 = 64,401.47 : x
  2. Step 2: Convert to fraction form
    101,920.58/152,800.41 = 64,401.47/x
  3. Step 3: Cross multiply
    101,920.58x = 152,800.41 × 64,401.47
  4. Step 4: Simplify right side
    101,920.58x = 9,840,571,020.60
  5. Step 5: Solve for x
    x = 9,840,571,020.60/101,920.58
  6. Step 6: Final answer
    x = 96,551.36

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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.