Home / 142,957.08-197,304.39-79,315.38

Finding the Fourth Proportional to 142,957.08, 197,304.39 and 79,315.38

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Solution

The fourth proportional to 142,957.08, 197,304.39 and 79,315.38 is: 109,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,957.08 : 197,304.39 = 79,315.38 : x
  2. Step 2: Convert to fraction form
    142,957.08/197,304.39 = 79,315.38/x
  3. Step 3: Cross multiply
    142,957.08x = 197,304.39 × 79,315.38
  4. Step 4: Simplify right side
    142,957.08x = 15,649,272,668.52
  5. Step 5: Solve for x
    x = 15,649,272,668.52/142,957.08
  6. Step 6: Final answer
    x = 109,468.33

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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.