Home / 239,214.20-358,869.90-81,458.60

Finding the Fourth Proportional to 239,214.20, 358,869.90 and 81,458.60

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Solution

The fourth proportional to 239,214.20, 358,869.90 and 81,458.60 is: 122,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,214.20 : 358,869.90 = 81,458.60 : x
  2. Step 2: Convert to fraction form
    239,214.20/358,869.90 = 81,458.60/x
  3. Step 3: Cross multiply
    239,214.20x = 358,869.90 × 81,458.60
  4. Step 4: Simplify right side
    239,214.20x = 29,233,039,636.14
  5. Step 5: Solve for x
    x = 29,233,039,636.14/239,214.20
  6. Step 6: Final answer
    x = 122,204.45

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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.