Home / 142,926.61-197,233.75-79,270.33

Finding the Fourth Proportional to 142,926.61, 197,233.75 and 79,270.33

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Solution

The fourth proportional to 142,926.61, 197,233.75 and 79,270.33 is: 109,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.61 : 197,233.75 = 79,270.33 : x
  2. Step 2: Convert to fraction form
    142,926.61/197,233.75 = 79,270.33/x
  3. Step 3: Cross multiply
    142,926.61x = 197,233.75 × 79,270.33
  4. Step 4: Simplify right side
    142,926.61x = 15,634,784,449.64
  5. Step 5: Solve for x
    x = 15,634,784,449.64/142,926.61
  6. Step 6: Final answer
    x = 109,390.30

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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.