Home / 142,690.52-196,914.57-79,029.38

Finding the Fourth Proportional to 142,690.52, 196,914.57 and 79,029.38

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Solution

The fourth proportional to 142,690.52, 196,914.57 and 79,029.38 is: 109,061.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,690.52 : 196,914.57 = 79,029.38 : x
  2. Step 2: Convert to fraction form
    142,690.52/196,914.57 = 79,029.38/x
  3. Step 3: Cross multiply
    142,690.52x = 196,914.57 × 79,029.38
  4. Step 4: Simplify right side
    142,690.52x = 15,562,036,380.07
  5. Step 5: Solve for x
    x = 15,562,036,380.07/142,690.52
  6. Step 6: Final answer
    x = 109,061.46

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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.