Home / 126,579.12-189,888.12-37,822.56

Finding the Fourth Proportional to 126,579.12, 189,888.12 and 37,822.56

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Solution

The fourth proportional to 126,579.12, 189,888.12 and 37,822.56 is: 56,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,579.12 : 189,888.12 = 37,822.56 : x
  2. Step 2: Convert to fraction form
    126,579.12/189,888.12 = 37,822.56/x
  3. Step 3: Cross multiply
    126,579.12x = 189,888.12 × 37,822.56
  4. Step 4: Simplify right side
    126,579.12x = 7,182,054,811.99
  5. Step 5: Solve for x
    x = 7,182,054,811.99/126,579.12
  6. Step 6: Final answer
    x = 56,739.65

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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.