Home / 207,831.59-311,789.61-65,699.07

Finding the Fourth Proportional to 207,831.59, 311,789.61 and 65,699.07

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Solution

The fourth proportional to 207,831.59, 311,789.61 and 65,699.07 is: 98,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,831.59 : 311,789.61 = 65,699.07 : x
  2. Step 2: Convert to fraction form
    207,831.59/311,789.61 = 65,699.07/x
  3. Step 3: Cross multiply
    207,831.59x = 311,789.61 × 65,699.07
  4. Step 4: Simplify right side
    207,831.59x = 20,484,287,084.17
  5. Step 5: Solve for x
    x = 20,484,287,084.17/207,831.59
  6. Step 6: Final answer
    x = 98,561.95

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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.