Home / 142,712.25-196,942.92-79,054.17

Finding the Fourth Proportional to 142,712.25, 196,942.92 and 79,054.17

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Solution

The fourth proportional to 142,712.25, 196,942.92 and 79,054.17 is: 109,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.25 : 196,942.92 = 79,054.17 : x
  2. Step 2: Convert to fraction form
    142,712.25/196,942.92 = 79,054.17/x
  3. Step 3: Cross multiply
    142,712.25x = 196,942.92 × 79,054.17
  4. Step 4: Simplify right side
    142,712.25x = 15,569,159,077.98
  5. Step 5: Solve for x
    x = 15,569,159,077.98/142,712.25
  6. Step 6: Final answer
    x = 109,094.76

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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.