Home / 142,992.59-197,353.40-79,350.89

Finding the Fourth Proportional to 142,992.59, 197,353.40 and 79,350.89

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Solution

The fourth proportional to 142,992.59, 197,353.40 and 79,350.89 is: 109,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.59 : 197,353.40 = 79,350.89 : x
  2. Step 2: Convert to fraction form
    142,992.59/197,353.40 = 79,350.89/x
  3. Step 3: Cross multiply
    142,992.59x = 197,353.40 × 79,350.89
  4. Step 4: Simplify right side
    142,992.59x = 15,660,166,551.00
  5. Step 5: Solve for x
    x = 15,660,166,551.00/142,992.59
  6. Step 6: Final answer
    x = 109,517.33

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1.5x scale

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.