Home / 100,117.56-150,181.33-29,990.19

Finding the Fourth Proportional to 100,117.56, 150,181.33 and 29,990.19

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Solution

The fourth proportional to 100,117.56, 150,181.33 and 29,990.19 is: 44,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,117.56 : 150,181.33 = 29,990.19 : x
  2. Step 2: Convert to fraction form
    100,117.56/150,181.33 = 29,990.19/x
  3. Step 3: Cross multiply
    100,117.56x = 150,181.33 × 29,990.19
  4. Step 4: Simplify right side
    100,117.56x = 4,503,966,621.15
  5. Step 5: Solve for x
    x = 4,503,966,621.15/100,117.56
  6. Step 6: Final answer
    x = 44,986.78

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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.