Home / 189,139.46-261,014.20-104,259.56

Finding the Fourth Proportional to 189,139.46, 261,014.20 and 104,259.56

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Solution

The fourth proportional to 189,139.46, 261,014.20 and 104,259.56 is: 143,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,139.46 : 261,014.20 = 104,259.56 : x
  2. Step 2: Convert to fraction form
    189,139.46/261,014.20 = 104,259.56/x
  3. Step 3: Cross multiply
    189,139.46x = 261,014.20 × 104,259.56
  4. Step 4: Simplify right side
    189,139.46x = 27,213,224,080.03
  5. Step 5: Solve for x
    x = 27,213,224,080.03/189,139.46
  6. Step 6: Final answer
    x = 143,879.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.