Home / 426,119.88-639,154.75-159,858.10

Finding the Fourth Proportional to 426,119.88, 639,154.75 and 159,858.10

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Solution

The fourth proportional to 426,119.88, 639,154.75 and 159,858.10 is: 239,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,119.88 : 639,154.75 = 159,858.10 : x
  2. Step 2: Convert to fraction form
    426,119.88/639,154.75 = 159,858.10/x
  3. Step 3: Cross multiply
    426,119.88x = 639,154.75 × 159,858.10
  4. Step 4: Simplify right side
    426,119.88x = 102,174,059,945.91
  5. Step 5: Solve for x
    x = 102,174,059,945.91/426,119.88
  6. Step 6: Final answer
    x = 239,777.74

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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.