Home / 142,213.54-196,253.52-77,682.82

Finding the Fourth Proportional to 142,213.54, 196,253.52 and 77,682.82

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Solution

The fourth proportional to 142,213.54, 196,253.52 and 77,682.82 is: 107,201.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,213.54 : 196,253.52 = 77,682.82 : x
  2. Step 2: Convert to fraction form
    142,213.54/196,253.52 = 77,682.82/x
  3. Step 3: Cross multiply
    142,213.54x = 196,253.52 × 77,682.82
  4. Step 4: Simplify right side
    142,213.54x = 15,245,526,868.53
  5. Step 5: Solve for x
    x = 15,245,526,868.53/142,213.54
  6. Step 6: Final answer
    x = 107,201.66

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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.