Home / 209,218.07-313,960.77-76,085.66

Finding the Fourth Proportional to 209,218.07, 313,960.77 and 76,085.66

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Solution

The fourth proportional to 209,218.07, 313,960.77 and 76,085.66 is: 114,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,218.07 : 313,960.77 = 76,085.66 : x
  2. Step 2: Convert to fraction form
    209,218.07/313,960.77 = 76,085.66/x
  3. Step 3: Cross multiply
    209,218.07x = 313,960.77 × 76,085.66
  4. Step 4: Simplify right side
    209,218.07x = 23,887,913,184.46
  5. Step 5: Solve for x
    x = 23,887,913,184.46/209,218.07
  6. Step 6: Final answer
    x = 114,177.10

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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.