Home / 126,054.20-189,362.90-105,318.20

Finding the Fourth Proportional to 126,054.20, 189,362.90 and 105,318.20

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Solution

The fourth proportional to 126,054.20, 189,362.90 and 105,318.20 is: 158,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,054.20 : 189,362.90 = 105,318.20 : x
  2. Step 2: Convert to fraction form
    126,054.20/189,362.90 = 105,318.20/x
  3. Step 3: Cross multiply
    126,054.20x = 189,362.90 × 105,318.20
  4. Step 4: Simplify right side
    126,054.20x = 19,943,359,774.78
  5. Step 5: Solve for x
    x = 19,943,359,774.78/126,054.20
  6. Step 6: Final answer
    x = 158,212.58

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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.