Home / 139,439.52-192,427.74-75,777.30

Finding the Fourth Proportional to 139,439.52, 192,427.74 and 75,777.30

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Solution

The fourth proportional to 139,439.52, 192,427.74 and 75,777.30 is: 104,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,439.52 : 192,427.74 = 75,777.30 : x
  2. Step 2: Convert to fraction form
    139,439.52/192,427.74 = 75,777.30/x
  3. Step 3: Cross multiply
    139,439.52x = 192,427.74 × 75,777.30
  4. Step 4: Simplify right side
    139,439.52x = 14,581,654,582.30
  5. Step 5: Solve for x
    x = 14,581,654,582.30/139,439.52
  6. Step 6: Final answer
    x = 104,573.33

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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.