Home / 100,421.64-150,631.82-25,541.14

Finding the Fourth Proportional to 100,421.64, 150,631.82 and 25,541.14

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Solution

The fourth proportional to 100,421.64, 150,631.82 and 25,541.14 is: 38,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,421.64 : 150,631.82 = 25,541.14 : x
  2. Step 2: Convert to fraction form
    100,421.64/150,631.82 = 25,541.14/x
  3. Step 3: Cross multiply
    100,421.64x = 150,631.82 × 25,541.14
  4. Step 4: Simplify right side
    100,421.64x = 3,847,308,403.07
  5. Step 5: Solve for x
    x = 3,847,308,403.07/100,421.64
  6. Step 6: Final answer
    x = 38,311.55

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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.