Home / 142,950.11-197,266.13-79,293.83

Finding the Fourth Proportional to 142,950.11, 197,266.13 and 79,293.83

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Solution

The fourth proportional to 142,950.11, 197,266.13 and 79,293.83 is: 109,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,950.11 : 197,266.13 = 79,293.83 : x
  2. Step 2: Convert to fraction form
    142,950.11/197,266.13 = 79,293.83/x
  3. Step 3: Cross multiply
    142,950.11x = 197,266.13 × 79,293.83
  4. Step 4: Simplify right side
    142,950.11x = 15,641,985,594.18
  5. Step 5: Solve for x
    x = 15,641,985,594.18/142,950.11
  6. Step 6: Final answer
    x = 109,422.69

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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.