Home / 142,848.20-197,117.26-79,180.58

Finding the Fourth Proportional to 142,848.20, 197,117.26 and 79,180.58

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Solution

The fourth proportional to 142,848.20, 197,117.26 and 79,180.58 is: 109,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,848.20 : 197,117.26 = 79,180.58 : x
  2. Step 2: Convert to fraction form
    142,848.20/197,117.26 = 79,180.58/x
  3. Step 3: Cross multiply
    142,848.20x = 197,117.26 × 79,180.58
  4. Step 4: Simplify right side
    142,848.20x = 15,607,857,791.27
  5. Step 5: Solve for x
    x = 15,607,857,791.27/142,848.20
  6. Step 6: Final answer
    x = 109,261.85

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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.