Home / 187,192.86-258,326.82-102,309.96

Finding the Fourth Proportional to 187,192.86, 258,326.82 and 102,309.96

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Solution

The fourth proportional to 187,192.86, 258,326.82 and 102,309.96 is: 141,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,192.86 : 258,326.82 = 102,309.96 : x
  2. Step 2: Convert to fraction form
    187,192.86/258,326.82 = 102,309.96/x
  3. Step 3: Cross multiply
    187,192.86x = 258,326.82 × 102,309.96
  4. Step 4: Simplify right side
    187,192.86x = 26,429,406,621.13
  5. Step 5: Solve for x
    x = 26,429,406,621.13/187,192.86
  6. Step 6: Final answer
    x = 141,188.11

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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.