Home / 139,350.55-192,304.77-75,688.36

Finding the Fourth Proportional to 139,350.55, 192,304.77 and 75,688.36

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Solution

The fourth proportional to 139,350.55, 192,304.77 and 75,688.36 is: 104,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,350.55 : 192,304.77 = 75,688.36 : x
  2. Step 2: Convert to fraction form
    139,350.55/192,304.77 = 75,688.36/x
  3. Step 3: Cross multiply
    139,350.55x = 192,304.77 × 75,688.36
  4. Step 4: Simplify right side
    139,350.55x = 14,555,232,661.48
  5. Step 5: Solve for x
    x = 14,555,232,661.48/139,350.55
  6. Step 6: Final answer
    x = 104,450.49

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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.