Home / 139,231.52-192,134.35-75,567.95

Finding the Fourth Proportional to 139,231.52, 192,134.35 and 75,567.95

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Solution

The fourth proportional to 139,231.52, 192,134.35 and 75,567.95 is: 104,280.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231.52 : 192,134.35 = 75,567.95 : x
  2. Step 2: Convert to fraction form
    139,231.52/192,134.35 = 75,567.95/x
  3. Step 3: Cross multiply
    139,231.52x = 192,134.35 × 75,567.95
  4. Step 4: Simplify right side
    139,231.52x = 14,519,197,993.41
  5. Step 5: Solve for x
    x = 14,519,197,993.41/139,231.52
  6. Step 6: Final answer
    x = 104,280.97

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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.