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Finding the Fourth Proportional to 100,061.10, 150,176.70 and 40,939.20

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Solution

The fourth proportional to 100,061.10, 150,176.70 and 40,939.20 is: 61,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,061.10 : 150,176.70 = 40,939.20 : x
  2. Step 2: Convert to fraction form
    100,061.10/150,176.70 = 40,939.20/x
  3. Step 3: Cross multiply
    100,061.10x = 150,176.70 × 40,939.20
  4. Step 4: Simplify right side
    100,061.10x = 6,148,113,956.64
  5. Step 5: Solve for x
    x = 6,148,113,956.64/100,061.10
  6. Step 6: Final answer
    x = 61,443.60

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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.