Home / 139,280.22-192,206.70-75,618.03

Finding the Fourth Proportional to 139,280.22, 192,206.70 and 75,618.03

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Solution

The fourth proportional to 139,280.22, 192,206.70 and 75,618.03 is: 104,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,280.22 : 192,206.70 = 75,618.03 : x
  2. Step 2: Convert to fraction form
    139,280.22/192,206.70 = 75,618.03/x
  3. Step 3: Cross multiply
    139,280.22x = 192,206.70 × 75,618.03
  4. Step 4: Simplify right side
    139,280.22x = 14,534,292,006.80
  5. Step 5: Solve for x
    x = 14,534,292,006.80/139,280.22
  6. Step 6: Final answer
    x = 104,352.88

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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.