Home / 142,946.33-197,289.56-79,304.63

Finding the Fourth Proportional to 142,946.33, 197,289.56 and 79,304.63

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Solution

The fourth proportional to 142,946.33, 197,289.56 and 79,304.63 is: 109,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946.33 : 197,289.56 = 79,304.63 : x
  2. Step 2: Convert to fraction form
    142,946.33/197,289.56 = 79,304.63/x
  3. Step 3: Cross multiply
    142,946.33x = 197,289.56 × 79,304.63
  4. Step 4: Simplify right side
    142,946.33x = 15,645,975,162.14
  5. Step 5: Solve for x
    x = 15,645,975,162.14/142,946.33
  6. Step 6: Final answer
    x = 109,453.49

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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.