Home / 189,506.72-261,517.52-104,621.92

Finding the Fourth Proportional to 189,506.72, 261,517.52 and 104,621.92

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Solution

The fourth proportional to 189,506.72, 261,517.52 and 104,621.92 is: 144,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,506.72 : 261,517.52 = 104,621.92 : x
  2. Step 2: Convert to fraction form
    189,506.72/261,517.52 = 104,621.92/x
  3. Step 3: Cross multiply
    189,506.72x = 261,517.52 × 104,621.92
  4. Step 4: Simplify right side
    189,506.72x = 27,360,465,056.04
  5. Step 5: Solve for x
    x = 27,360,465,056.04/189,506.72
  6. Step 6: Final answer
    x = 144,377.28

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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.