Home / 189,131.04-261,012.60-104,247.90

Finding the Fourth Proportional to 189,131.04, 261,012.60 and 104,247.90

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Solution

The fourth proportional to 189,131.04, 261,012.60 and 104,247.90 is: 143,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,131.04 : 261,012.60 = 104,247.90 : x
  2. Step 2: Convert to fraction form
    189,131.04/261,012.60 = 104,247.90/x
  3. Step 3: Cross multiply
    189,131.04x = 261,012.60 × 104,247.90
  4. Step 4: Simplify right side
    189,131.04x = 27,210,015,423.54
  5. Step 5: Solve for x
    x = 27,210,015,423.54/189,131.04
  6. Step 6: Final answer
    x = 143,868.59

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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.