Home / 126,327.87-189,437.74-42,065.19

Finding the Fourth Proportional to 126,327.87, 189,437.74 and 42,065.19

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Solution

The fourth proportional to 126,327.87, 189,437.74 and 42,065.19 is: 63,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,327.87 : 189,437.74 = 42,065.19 : x
  2. Step 2: Convert to fraction form
    126,327.87/189,437.74 = 42,065.19/x
  3. Step 3: Cross multiply
    126,327.87x = 189,437.74 × 42,065.19
  4. Step 4: Simplify right side
    126,327.87x = 7,968,734,421.11
  5. Step 5: Solve for x
    x = 7,968,734,421.11/126,327.87
  6. Step 6: Final answer
    x = 63,079.78

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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.