Home / 126,176.94-189,210-47,235.80

Finding the Fourth Proportional to 126,176.94, 189,210 and 47,235.80

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Solution

The fourth proportional to 126,176.94, 189,210 and 47,235.80 is: 70,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,176.94 : 189,210 = 47,235.80 : x
  2. Step 2: Convert to fraction form
    126,176.94/189,210 = 47,235.80/x
  3. Step 3: Cross multiply
    126,176.94x = 189,210 × 47,235.80
  4. Step 4: Simplify right side
    126,176.94x = 8,937,485,718
  5. Step 5: Solve for x
    x = 8,937,485,718/126,176.94
  6. Step 6: Final answer
    x = 70,832.96

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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.