Home / 101,266.79-139,747.49-55,947.69

Finding the Fourth Proportional to 101,266.79, 139,747.49 and 55,947.69

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Solution

The fourth proportional to 101,266.79, 139,747.49 and 55,947.69 is: 77,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.79 : 139,747.49 = 55,947.69 : x
  2. Step 2: Convert to fraction form
    101,266.79/139,747.49 = 55,947.69/x
  3. Step 3: Cross multiply
    101,266.79x = 139,747.49 × 55,947.69
  4. Step 4: Simplify right side
    101,266.79x = 7,818,548,969.06
  5. Step 5: Solve for x
    x = 7,818,548,969.06/101,266.79
  6. Step 6: Final answer
    x = 77,207.44

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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.