Home / 100,419.16-150,632.66-30,298.48

Finding the Fourth Proportional to 100,419.16, 150,632.66 and 30,298.48

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Solution

The fourth proportional to 100,419.16, 150,632.66 and 30,298.48 is: 45,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,419.16 : 150,632.66 = 30,298.48 : x
  2. Step 2: Convert to fraction form
    100,419.16/150,632.66 = 30,298.48/x
  3. Step 3: Cross multiply
    100,419.16x = 150,632.66 × 30,298.48
  4. Step 4: Simplify right side
    100,419.16x = 4,563,940,636.36
  5. Step 5: Solve for x
    x = 4,563,940,636.36/100,419.16
  6. Step 6: Final answer
    x = 45,448.90

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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.