Home / 126,219.87-189,331.47-41,980.05

Finding the Fourth Proportional to 126,219.87, 189,331.47 and 41,980.05

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Solution

The fourth proportional to 126,219.87, 189,331.47 and 41,980.05 is: 62,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,219.87 : 189,331.47 = 41,980.05 : x
  2. Step 2: Convert to fraction form
    126,219.87/189,331.47 = 41,980.05/x
  3. Step 3: Cross multiply
    126,219.87x = 189,331.47 × 41,980.05
  4. Step 4: Simplify right side
    126,219.87x = 7,948,144,577.17
  5. Step 5: Solve for x
    x = 7,948,144,577.17/126,219.87
  6. Step 6: Final answer
    x = 62,970.63

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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.