Home / 187,668.85-258,983.02-102,785.91

Finding the Fourth Proportional to 187,668.85, 258,983.02 and 102,785.91

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Solution

The fourth proportional to 187,668.85, 258,983.02 and 102,785.91 is: 141,844.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,668.85 : 258,983.02 = 102,785.91 : x
  2. Step 2: Convert to fraction form
    187,668.85/258,983.02 = 102,785.91/x
  3. Step 3: Cross multiply
    187,668.85x = 258,983.02 × 102,785.91
  4. Step 4: Simplify right side
    187,668.85x = 26,619,805,999.32
  5. Step 5: Solve for x
    x = 26,619,805,999.32/187,668.85
  6. Step 6: Final answer
    x = 141,844.56

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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.