Home / 100,850.43-139,172.45-55,527.47

Finding the Fourth Proportional to 100,850.43, 139,172.45 and 55,527.47

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Solution

The fourth proportional to 100,850.43, 139,172.45 and 55,527.47 is: 76,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.43 : 139,172.45 = 55,527.47 : x
  2. Step 2: Convert to fraction form
    100,850.43/139,172.45 = 55,527.47/x
  3. Step 3: Cross multiply
    100,850.43x = 139,172.45 × 55,527.47
  4. Step 4: Simplify right side
    100,850.43x = 7,727,893,068.70
  5. Step 5: Solve for x
    x = 7,727,893,068.70/100,850.43
  6. Step 6: Final answer
    x = 76,627.27

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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.