Home / 208,717.18-313,010.07-68,443.06

Finding the Fourth Proportional to 208,717.18, 313,010.07 and 68,443.06

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Solution

The fourth proportional to 208,717.18, 313,010.07 and 68,443.06 is: 102,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,717.18 : 313,010.07 = 68,443.06 : x
  2. Step 2: Convert to fraction form
    208,717.18/313,010.07 = 68,443.06/x
  3. Step 3: Cross multiply
    208,717.18x = 313,010.07 × 68,443.06
  4. Step 4: Simplify right side
    208,717.18x = 21,423,367,001.61
  5. Step 5: Solve for x
    x = 21,423,367,001.61/208,717.18
  6. Step 6: Final answer
    x = 102,643.05

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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.