Home / 137,557.97-189,831.94-83,102.57

Finding the Fourth Proportional to 137,557.97, 189,831.94 and 83,102.57

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Solution

The fourth proportional to 137,557.97, 189,831.94 and 83,102.57 is: 114,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,557.97 : 189,831.94 = 83,102.57 : x
  2. Step 2: Convert to fraction form
    137,557.97/189,831.94 = 83,102.57/x
  3. Step 3: Cross multiply
    137,557.97x = 189,831.94 × 83,102.57
  4. Step 4: Simplify right side
    137,557.97x = 15,775,522,460.43
  5. Step 5: Solve for x
    x = 15,775,522,460.43/137,557.97
  6. Step 6: Final answer
    x = 114,682.72

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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.