Home / 187,640.16-258,940.80-102,757.20

Finding the Fourth Proportional to 187,640.16, 258,940.80 and 102,757.20

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Solution

The fourth proportional to 187,640.16, 258,940.80 and 102,757.20 is: 141,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,640.16 : 258,940.80 = 102,757.20 : x
  2. Step 2: Convert to fraction form
    187,640.16/258,940.80 = 102,757.20/x
  3. Step 3: Cross multiply
    187,640.16x = 258,940.80 × 102,757.20
  4. Step 4: Simplify right side
    187,640.16x = 26,608,031,573.76
  5. Step 5: Solve for x
    x = 26,608,031,573.76/187,640.16
  6. Step 6: Final answer
    x = 141,803.50

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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.