Home / 126,178.43-189,212.25-47,237.30

Finding the Fourth Proportional to 126,178.43, 189,212.25 and 47,237.30

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Solution

The fourth proportional to 126,178.43, 189,212.25 and 47,237.30 is: 70,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,178.43 : 189,212.25 = 47,237.30 : x
  2. Step 2: Convert to fraction form
    126,178.43/189,212.25 = 47,237.30/x
  3. Step 3: Cross multiply
    126,178.43x = 189,212.25 × 47,237.30
  4. Step 4: Simplify right side
    126,178.43x = 8,937,875,816.93
  5. Step 5: Solve for x
    x = 8,937,875,816.93/126,178.43
  6. Step 6: Final answer
    x = 70,835.21

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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.