Home / 126,539.62-189,804.41-70,344.20

Finding the Fourth Proportional to 126,539.62, 189,804.41 and 70,344.20

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Solution

The fourth proportional to 126,539.62, 189,804.41 and 70,344.20 is: 105,513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,539.62 : 189,804.41 = 70,344.20 : x
  2. Step 2: Convert to fraction form
    126,539.62/189,804.41 = 70,344.20/x
  3. Step 3: Cross multiply
    126,539.62x = 189,804.41 × 70,344.20
  4. Step 4: Simplify right side
    126,539.62x = 13,351,639,092.54
  5. Step 5: Solve for x
    x = 13,351,639,092.54/126,539.62
  6. Step 6: Final answer
    x = 105,513.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.