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Finding the Fourth Proportional to 100,000.61, 150,000.92 and 40,056.31

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Solution

The fourth proportional to 100,000.61, 150,000.92 and 40,056.31 is: 60,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,000.61 : 150,000.92 = 40,056.31 : x
  2. Step 2: Convert to fraction form
    100,000.61/150,000.92 = 40,056.31/x
  3. Step 3: Cross multiply
    100,000.61x = 150,000.92 × 40,056.31
  4. Step 4: Simplify right side
    100,000.61x = 6,008,483,351.81
  5. Step 5: Solve for x
    x = 6,008,483,351.81/100,000.61
  6. Step 6: Final answer
    x = 60,084.47

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Similar ratio
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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.