Home / 99,831.46-137,790.39-65,846.02

Finding the Fourth Proportional to 99,831.46, 137,790.39 and 65,846.02

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Solution

The fourth proportional to 99,831.46, 137,790.39 and 65,846.02 is: 90,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.46 : 137,790.39 = 65,846.02 : x
  2. Step 2: Convert to fraction form
    99,831.46/137,790.39 = 65,846.02/x
  3. Step 3: Cross multiply
    99,831.46x = 137,790.39 × 65,846.02
  4. Step 4: Simplify right side
    99,831.46x = 9,072,948,775.75
  5. Step 5: Solve for x
    x = 9,072,948,775.75/99,831.46
  6. Step 6: Final answer
    x = 90,882.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.