Home / 142,065.36-196,046.28-77,536.08

Finding the Fourth Proportional to 142,065.36, 196,046.28 and 77,536.08

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Solution

The fourth proportional to 142,065.36, 196,046.28 and 77,536.08 is: 106,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,065.36 : 196,046.28 = 77,536.08 : x
  2. Step 2: Convert to fraction form
    142,065.36/196,046.28 = 77,536.08/x
  3. Step 3: Cross multiply
    142,065.36x = 196,046.28 × 77,536.08
  4. Step 4: Simplify right side
    142,065.36x = 15,200,660,049.78
  5. Step 5: Solve for x
    x = 15,200,660,049.78/142,065.36
  6. Step 6: Final answer
    x = 106,997.65

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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.