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Finding the Fourth Proportional to 101,161.58, 139,604.13 and 55,839.59

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Solution

The fourth proportional to 101,161.58, 139,604.13 and 55,839.59 is: 77,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,161.58 : 139,604.13 = 55,839.59 : x
  2. Step 2: Convert to fraction form
    101,161.58/139,604.13 = 55,839.59/x
  3. Step 3: Cross multiply
    101,161.58x = 139,604.13 × 55,839.59
  4. Step 4: Simplify right side
    101,161.58x = 7,795,437,730.52
  5. Step 5: Solve for x
    x = 7,795,437,730.52/101,161.58
  6. Step 6: Final answer
    x = 77,059.28

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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.