Home / 100,621.16-150,930.18-25,740.62

Finding the Fourth Proportional to 100,621.16, 150,930.18 and 25,740.62

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Solution

The fourth proportional to 100,621.16, 150,930.18 and 25,740.62 is: 38,610.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,621.16 : 150,930.18 = 25,740.62 : x
  2. Step 2: Convert to fraction form
    100,621.16/150,930.18 = 25,740.62/x
  3. Step 3: Cross multiply
    100,621.16x = 150,930.18 × 25,740.62
  4. Step 4: Simplify right side
    100,621.16x = 3,885,036,409.91
  5. Step 5: Solve for x
    x = 3,885,036,409.91/100,621.16
  6. Step 6: Final answer
    x = 38,610.53

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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.