Home / 142,926.90-197,229.51-79,262.34

Finding the Fourth Proportional to 142,926.90, 197,229.51 and 79,262.34

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Solution

The fourth proportional to 142,926.90, 197,229.51 and 79,262.34 is: 109,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.90 : 197,229.51 = 79,262.34 : x
  2. Step 2: Convert to fraction form
    142,926.90/197,229.51 = 79,262.34/x
  3. Step 3: Cross multiply
    142,926.90x = 197,229.51 × 79,262.34
  4. Step 4: Simplify right side
    142,926.90x = 15,632,872,479.65
  5. Step 5: Solve for x
    x = 15,632,872,479.65/142,926.90
  6. Step 6: Final answer
    x = 109,376.70

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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.