Home / 142,986.01-197,344.35-79,344.31

Finding the Fourth Proportional to 142,986.01, 197,344.35 and 79,344.31

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Solution

The fourth proportional to 142,986.01, 197,344.35 and 79,344.31 is: 109,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,986.01 : 197,344.35 = 79,344.31 : x
  2. Step 2: Convert to fraction form
    142,986.01/197,344.35 = 79,344.31/x
  3. Step 3: Cross multiply
    142,986.01x = 197,344.35 × 79,344.31
  4. Step 4: Simplify right side
    142,986.01x = 15,658,151,283.15
  5. Step 5: Solve for x
    x = 15,658,151,283.15/142,986.01
  6. Step 6: Final answer
    x = 109,508.27

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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.