Home / 171,819.28-237,019-100,173.12

Finding the Fourth Proportional to 171,819.28, 237,019 and 100,173.12

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Solution

The fourth proportional to 171,819.28, 237,019 and 100,173.12 is: 138,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,819.28 : 237,019 = 100,173.12 : x
  2. Step 2: Convert to fraction form
    171,819.28/237,019 = 100,173.12/x
  3. Step 3: Cross multiply
    171,819.28x = 237,019 × 100,173.12
  4. Step 4: Simplify right side
    171,819.28x = 23,742,932,729.28
  5. Step 5: Solve for x
    x = 23,742,932,729.28/171,819.28
  6. Step 6: Final answer
    x = 138,185.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.