Home / 189,521.17-261,537.24-103,479.88

Finding the Fourth Proportional to 189,521.17, 261,537.24 and 103,479.88

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Solution

The fourth proportional to 189,521.17, 261,537.24 and 103,479.88 is: 142,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,521.17 : 261,537.24 = 103,479.88 : x
  2. Step 2: Convert to fraction form
    189,521.17/261,537.24 = 103,479.88/x
  3. Step 3: Cross multiply
    189,521.17x = 261,537.24 × 103,479.88
  4. Step 4: Simplify right side
    189,521.17x = 27,063,841,853.25
  5. Step 5: Solve for x
    x = 27,063,841,853.25/189,521.17
  6. Step 6: Final answer
    x = 142,801.16

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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.