Home / 187,914.36-259,319.88-103,031.28

Finding the Fourth Proportional to 187,914.36, 259,319.88 and 103,031.28

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Solution

The fourth proportional to 187,914.36, 259,319.88 and 103,031.28 is: 142,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,914.36 : 259,319.88 = 103,031.28 : x
  2. Step 2: Convert to fraction form
    187,914.36/259,319.88 = 103,031.28/x
  3. Step 3: Cross multiply
    187,914.36x = 259,319.88 × 103,031.28
  4. Step 4: Simplify right side
    187,914.36x = 26,718,059,165.85
  5. Step 5: Solve for x
    x = 26,718,059,165.85/187,914.36
  6. Step 6: Final answer
    x = 142,182.10

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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.