Home / 142,946.28-197,289.48-79,304.58

Finding the Fourth Proportional to 142,946.28, 197,289.48 and 79,304.58

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Solution

The fourth proportional to 142,946.28, 197,289.48 and 79,304.58 is: 109,453.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946.28 : 197,289.48 = 79,304.58 : x
  2. Step 2: Convert to fraction form
    142,946.28/197,289.48 = 79,304.58/x
  3. Step 3: Cross multiply
    142,946.28x = 197,289.48 × 79,304.58
  4. Step 4: Simplify right side
    142,946.28x = 15,645,959,349.82
  5. Step 5: Solve for x
    x = 15,645,959,349.82/142,946.28
  6. Step 6: Final answer
    x = 109,453.42

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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.