Home / 126,011.20-189,089.70-47,133.40

Finding the Fourth Proportional to 126,011.20, 189,089.70 and 47,133.40

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Solution

The fourth proportional to 126,011.20, 189,089.70 and 47,133.40 is: 70,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,011.20 : 189,089.70 = 47,133.40 : x
  2. Step 2: Convert to fraction form
    126,011.20/189,089.70 = 47,133.40/x
  3. Step 3: Cross multiply
    126,011.20x = 189,089.70 × 47,133.40
  4. Step 4: Simplify right side
    126,011.20x = 8,912,440,465.98
  5. Step 5: Solve for x
    x = 8,912,440,465.98/126,011.20
  6. Step 6: Final answer
    x = 70,727.37

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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.