Home / 101,766.79-140,486.39-67,831.84

Finding the Fourth Proportional to 101,766.79, 140,486.39 and 67,831.84

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Solution

The fourth proportional to 101,766.79, 140,486.39 and 67,831.84 is: 93,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,766.79 : 140,486.39 = 67,831.84 : x
  2. Step 2: Convert to fraction form
    101,766.79/140,486.39 = 67,831.84/x
  3. Step 3: Cross multiply
    101,766.79x = 140,486.39 × 67,831.84
  4. Step 4: Simplify right side
    101,766.79x = 9,529,450,419.48
  5. Step 5: Solve for x
    x = 9,529,450,419.48/101,766.79
  6. Step 6: Final answer
    x = 93,640.08

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1.5x scale

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.