Home / 189,714.24-261,802.42-103,671.31

Finding the Fourth Proportional to 189,714.24, 261,802.42 and 103,671.31

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Solution

The fourth proportional to 189,714.24, 261,802.42 and 103,671.31 is: 143,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,714.24 : 261,802.42 = 103,671.31 : x
  2. Step 2: Convert to fraction form
    189,714.24/261,802.42 = 103,671.31/x
  3. Step 3: Cross multiply
    189,714.24x = 261,802.42 × 103,671.31
  4. Step 4: Simplify right side
    189,714.24x = 27,141,399,842.57
  5. Step 5: Solve for x
    x = 27,141,399,842.57/189,714.24
  6. Step 6: Final answer
    x = 143,064.64

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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.