Home / 142,712.26-196,942.92-79,054.18

Finding the Fourth Proportional to 142,712.26, 196,942.92 and 79,054.18

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Solution

The fourth proportional to 142,712.26, 196,942.92 and 79,054.18 is: 109,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.26 : 196,942.92 = 79,054.18 : x
  2. Step 2: Convert to fraction form
    142,712.26/196,942.92 = 79,054.18/x
  3. Step 3: Cross multiply
    142,712.26x = 196,942.92 × 79,054.18
  4. Step 4: Simplify right side
    142,712.26x = 15,569,161,047.41
  5. Step 5: Solve for x
    x = 15,569,161,047.41/142,712.26
  6. Step 6: Final answer
    x = 109,094.77

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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.