Home / 126,058.24-189,120.16-47,178.56

Finding the Fourth Proportional to 126,058.24, 189,120.16 and 47,178.56

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Solution

The fourth proportional to 126,058.24, 189,120.16 and 47,178.56 is: 70,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,058.24 : 189,120.16 = 47,178.56 : x
  2. Step 2: Convert to fraction form
    126,058.24/189,120.16 = 47,178.56/x
  3. Step 3: Cross multiply
    126,058.24x = 189,120.16 × 47,178.56
  4. Step 4: Simplify right side
    126,058.24x = 8,922,416,815.77
  5. Step 5: Solve for x
    x = 8,922,416,815.77/126,058.24
  6. Step 6: Final answer
    x = 70,780.12

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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.