Home / 100,867.05-151,256.79-34,289.28

Finding the Fourth Proportional to 100,867.05, 151,256.79 and 34,289.28

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Solution

The fourth proportional to 100,867.05, 151,256.79 and 34,289.28 is: 51,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,867.05 : 151,256.79 = 34,289.28 : x
  2. Step 2: Convert to fraction form
    100,867.05/151,256.79 = 34,289.28/x
  3. Step 3: Cross multiply
    100,867.05x = 151,256.79 × 34,289.28
  4. Step 4: Simplify right side
    100,867.05x = 5,186,486,424.21
  5. Step 5: Solve for x
    x = 5,186,486,424.21/100,867.05
  6. Step 6: Final answer
    x = 51,419.04

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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.