Home / 126,012.11-189,018.14-42,906.11

Finding the Fourth Proportional to 126,012.11, 189,018.14 and 42,906.11

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Solution

The fourth proportional to 126,012.11, 189,018.14 and 42,906.11 is: 64,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,012.11 : 189,018.14 = 42,906.11 : x
  2. Step 2: Convert to fraction form
    126,012.11/189,018.14 = 42,906.11/x
  3. Step 3: Cross multiply
    126,012.11x = 189,018.14 × 42,906.11
  4. Step 4: Simplify right side
    126,012.11x = 8,110,031,947.21
  5. Step 5: Solve for x
    x = 8,110,031,947.21/126,012.11
  6. Step 6: Final answer
    x = 64,359.15

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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.