Home / 139,539.45-192,562.25-75,876.69

Finding the Fourth Proportional to 139,539.45, 192,562.25 and 75,876.69

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Solution

The fourth proportional to 139,539.45, 192,562.25 and 75,876.69 is: 104,708.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,539.45 : 192,562.25 = 75,876.69 : x
  2. Step 2: Convert to fraction form
    139,539.45/192,562.25 = 75,876.69/x
  3. Step 3: Cross multiply
    139,539.45x = 192,562.25 × 75,876.69
  4. Step 4: Simplify right side
    139,539.45x = 14,610,985,769.57
  5. Step 5: Solve for x
    x = 14,610,985,769.57/139,539.45
  6. Step 6: Final answer
    x = 104,708.64

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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.