Home / 402,678.14-604,003.23-103,161.20

Finding the Fourth Proportional to 402,678.14, 604,003.23 and 103,161.20

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Solution

The fourth proportional to 402,678.14, 604,003.23 and 103,161.20 is: 154,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,678.14 : 604,003.23 = 103,161.20 : x
  2. Step 2: Convert to fraction form
    402,678.14/604,003.23 = 103,161.20/x
  3. Step 3: Cross multiply
    402,678.14x = 604,003.23 × 103,161.20
  4. Step 4: Simplify right side
    402,678.14x = 62,309,694,990.66
  5. Step 5: Solve for x
    x = 62,309,694,990.66/402,678.14
  6. Step 6: Final answer
    x = 154,738.21

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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.