Home / 142,760.24-197,000.55-79,093.40

Finding the Fourth Proportional to 142,760.24, 197,000.55 and 79,093.40

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Solution

The fourth proportional to 142,760.24, 197,000.55 and 79,093.40 is: 109,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,760.24 : 197,000.55 = 79,093.40 : x
  2. Step 2: Convert to fraction form
    142,760.24/197,000.55 = 79,093.40/x
  3. Step 3: Cross multiply
    142,760.24x = 197,000.55 × 79,093.40
  4. Step 4: Simplify right side
    142,760.24x = 15,581,443,301.37
  5. Step 5: Solve for x
    x = 15,581,443,301.37/142,760.24
  6. Step 6: Final answer
    x = 109,144.14

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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.