Home / 126,323.32-189,458.88-47,435.80

Finding the Fourth Proportional to 126,323.32, 189,458.88 and 47,435.80

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Solution

The fourth proportional to 126,323.32, 189,458.88 and 47,435.80 is: 71,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,323.32 : 189,458.88 = 47,435.80 : x
  2. Step 2: Convert to fraction form
    126,323.32/189,458.88 = 47,435.80/x
  3. Step 3: Cross multiply
    126,323.32x = 189,458.88 × 47,435.80
  4. Step 4: Simplify right side
    126,323.32x = 8,987,133,539.90
  5. Step 5: Solve for x
    x = 8,987,133,539.90/126,323.32
  6. Step 6: Final answer
    x = 71,143.90

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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.