Home / 142,946.27-197,289.47-79,304.57

Finding the Fourth Proportional to 142,946.27, 197,289.47 and 79,304.57

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Solution

The fourth proportional to 142,946.27, 197,289.47 and 79,304.57 is: 109,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946.27 : 197,289.47 = 79,304.57 : x
  2. Step 2: Convert to fraction form
    142,946.27/197,289.47 = 79,304.57/x
  3. Step 3: Cross multiply
    142,946.27x = 197,289.47 × 79,304.57
  4. Step 4: Simplify right side
    142,946.27x = 15,645,956,583.88
  5. Step 5: Solve for x
    x = 15,645,956,583.88/142,946.27
  6. Step 6: Final answer
    x = 109,453.41

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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.