Home / 101,295.28-139,780.26-55,972.76

Finding the Fourth Proportional to 101,295.28, 139,780.26 and 55,972.76

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Solution

The fourth proportional to 101,295.28, 139,780.26 and 55,972.76 is: 77,238.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,295.28 : 139,780.26 = 55,972.76 : x
  2. Step 2: Convert to fraction form
    101,295.28/139,780.26 = 55,972.76/x
  3. Step 3: Cross multiply
    101,295.28x = 139,780.26 × 55,972.76
  4. Step 4: Simplify right side
    101,295.28x = 7,823,886,945.72
  5. Step 5: Solve for x
    x = 7,823,886,945.72/101,295.28
  6. Step 6: Final answer
    x = 77,238.42

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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.