Home / 139,370.13-192,330.81-75,708.36

Finding the Fourth Proportional to 139,370.13, 192,330.81 and 75,708.36

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Solution

The fourth proportional to 139,370.13, 192,330.81 and 75,708.36 is: 104,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,370.13 : 192,330.81 = 75,708.36 : x
  2. Step 2: Convert to fraction form
    139,370.13/192,330.81 = 75,708.36/x
  3. Step 3: Cross multiply
    139,370.13x = 192,330.81 × 75,708.36
  4. Step 4: Simplify right side
    139,370.13x = 14,561,050,202.57
  5. Step 5: Solve for x
    x = 14,561,050,202.57/139,370.13
  6. Step 6: Final answer
    x = 104,477.55

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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.