Home / 100,850.90-139,173.09-55,527.95

Finding the Fourth Proportional to 100,850.90, 139,173.09 and 55,527.95

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Solution

The fourth proportional to 100,850.90, 139,173.09 and 55,527.95 is: 76,627.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.90 : 139,173.09 = 55,527.95 : x
  2. Step 2: Convert to fraction form
    100,850.90/139,173.09 = 55,527.95/x
  3. Step 3: Cross multiply
    100,850.90x = 139,173.09 × 55,527.95
  4. Step 4: Simplify right side
    100,850.90x = 7,727,995,687.00
  5. Step 5: Solve for x
    x = 7,727,995,687.00/100,850.90
  6. Step 6: Final answer
    x = 76,627.93

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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.