Home / 100,850.04-139,171.92-55,527.11

Finding the Fourth Proportional to 100,850.04, 139,171.92 and 55,527.11

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Solution

The fourth proportional to 100,850.04, 139,171.92 and 55,527.11 is: 76,626.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.04 : 139,171.92 = 55,527.11 : x
  2. Step 2: Convert to fraction form
    100,850.04/139,171.92 = 55,527.11/x
  3. Step 3: Cross multiply
    100,850.04x = 139,171.92 × 55,527.11
  4. Step 4: Simplify right side
    100,850.04x = 7,727,813,814.89
  5. Step 5: Solve for x
    x = 7,727,813,814.89/100,850.04
  6. Step 6: Final answer
    x = 76,626.78

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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.