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Finding the Fourth Proportional to 101,265.59, 139,754.70 and 55,947.54

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Solution

The fourth proportional to 101,265.59, 139,754.70 and 55,947.54 is: 77,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,265.59 : 139,754.70 = 55,947.54 : x
  2. Step 2: Convert to fraction form
    101,265.59/139,754.70 = 55,947.54/x
  3. Step 3: Cross multiply
    101,265.59x = 139,754.70 × 55,947.54
  4. Step 4: Simplify right side
    101,265.59x = 7,818,932,192.52
  5. Step 5: Solve for x
    x = 7,818,932,192.52/101,265.59
  6. Step 6: Final answer
    x = 77,212.13

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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.