Home / 187,445.32-258,678.26-102,564.20

Finding the Fourth Proportional to 187,445.32, 258,678.26 and 102,564.20

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Solution

The fourth proportional to 187,445.32, 258,678.26 and 102,564.20 is: 141,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,445.32 : 258,678.26 = 102,564.20 : x
  2. Step 2: Convert to fraction form
    187,445.32/258,678.26 = 102,564.20/x
  3. Step 3: Cross multiply
    187,445.32x = 258,678.26 × 102,564.20
  4. Step 4: Simplify right side
    187,445.32x = 26,531,128,794.29
  5. Step 5: Solve for x
    x = 26,531,128,794.29/187,445.32
  6. Step 6: Final answer
    x = 141,540.63

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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.