Home / 142,964.88-197,315.19-79,323.18

Finding the Fourth Proportional to 142,964.88, 197,315.19 and 79,323.18

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Solution

The fourth proportional to 142,964.88, 197,315.19 and 79,323.18 is: 109,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,964.88 : 197,315.19 = 79,323.18 : x
  2. Step 2: Convert to fraction form
    142,964.88/197,315.19 = 79,323.18/x
  3. Step 3: Cross multiply
    142,964.88x = 197,315.19 × 79,323.18
  4. Step 4: Simplify right side
    142,964.88x = 15,651,668,333.10
  5. Step 5: Solve for x
    x = 15,651,668,333.10/142,964.88
  6. Step 6: Final answer
    x = 109,479.11

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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.