Home / 187,521.86-258,780.48-102,644.30

Finding the Fourth Proportional to 187,521.86, 258,780.48 and 102,644.30

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Solution

The fourth proportional to 187,521.86, 258,780.48 and 102,644.30 is: 141,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,521.86 : 258,780.48 = 102,644.30 : x
  2. Step 2: Convert to fraction form
    187,521.86/258,780.48 = 102,644.30/x
  3. Step 3: Cross multiply
    187,521.86x = 258,780.48 × 102,644.30
  4. Step 4: Simplify right side
    187,521.86x = 26,562,341,223.26
  5. Step 5: Solve for x
    x = 26,562,341,223.26/187,521.86
  6. Step 6: Final answer
    x = 141,649.31

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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.