Home / 142,282.58-196,341.44-77,738.94

Finding the Fourth Proportional to 142,282.58, 196,341.44 and 77,738.94

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Solution

The fourth proportional to 142,282.58, 196,341.44 and 77,738.94 is: 107,275.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,282.58 : 196,341.44 = 77,738.94 : x
  2. Step 2: Convert to fraction form
    142,282.58/196,341.44 = 77,738.94/x
  3. Step 3: Cross multiply
    142,282.58x = 196,341.44 × 77,738.94
  4. Step 4: Simplify right side
    142,282.58x = 15,263,375,034.98
  5. Step 5: Solve for x
    x = 15,263,375,034.98/142,282.58
  6. Step 6: Final answer
    x = 107,275.08

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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.