Home / 101,306.21-139,795.56-55,983.75

Finding the Fourth Proportional to 101,306.21, 139,795.56 and 55,983.75

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Solution

The fourth proportional to 101,306.21, 139,795.56 and 55,983.75 is: 77,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,306.21 : 139,795.56 = 55,983.75 : x
  2. Step 2: Convert to fraction form
    101,306.21/139,795.56 = 55,983.75/x
  3. Step 3: Cross multiply
    101,306.21x = 139,795.56 × 55,983.75
  4. Step 4: Simplify right side
    101,306.21x = 7,826,279,682.15
  5. Step 5: Solve for x
    x = 7,826,279,682.15/101,306.21
  6. Step 6: Final answer
    x = 77,253.71

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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.