Home / 426,139.46-639,043.07-159,754.63

Finding the Fourth Proportional to 426,139.46, 639,043.07 and 159,754.63

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Solution

The fourth proportional to 426,139.46, 639,043.07 and 159,754.63 is: 239,569.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,139.46 : 639,043.07 = 159,754.63 : x
  2. Step 2: Convert to fraction form
    426,139.46/639,043.07 = 159,754.63/x
  3. Step 3: Cross multiply
    426,139.46x = 639,043.07 × 159,754.63
  4. Step 4: Simplify right side
    426,139.46x = 102,090,085,207.93
  5. Step 5: Solve for x
    x = 102,090,085,207.93/426,139.46
  6. Step 6: Final answer
    x = 239,569.66

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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.