Home / 139,451.55-192,444.63-75,789.35

Finding the Fourth Proportional to 139,451.55, 192,444.63 and 75,789.35

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Solution

The fourth proportional to 139,451.55, 192,444.63 and 75,789.35 is: 104,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,451.55 : 192,444.63 = 75,789.35 : x
  2. Step 2: Convert to fraction form
    139,451.55/192,444.63 = 75,789.35/x
  3. Step 3: Cross multiply
    139,451.55x = 192,444.63 × 75,789.35
  4. Step 4: Simplify right side
    139,451.55x = 14,585,253,418.69
  5. Step 5: Solve for x
    x = 14,585,253,418.69/139,451.55
  6. Step 6: Final answer
    x = 104,590.11

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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.