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Finding the Fourth Proportional to 101,376.60, 152,064.90 and 45,972.60

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Solution

The fourth proportional to 101,376.60, 152,064.90 and 45,972.60 is: 68,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,376.60 : 152,064.90 = 45,972.60 : x
  2. Step 2: Convert to fraction form
    101,376.60/152,064.90 = 45,972.60/x
  3. Step 3: Cross multiply
    101,376.60x = 152,064.90 × 45,972.60
  4. Step 4: Simplify right side
    101,376.60x = 6,990,818,821.74
  5. Step 5: Solve for x
    x = 6,990,818,821.74/101,376.60
  6. Step 6: Final answer
    x = 68,958.90

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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.