Home / 187,807.36-259,173.12-102,921.52

Finding the Fourth Proportional to 187,807.36, 259,173.12 and 102,921.52

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Solution

The fourth proportional to 187,807.36, 259,173.12 and 102,921.52 is: 142,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,807.36 : 259,173.12 = 102,921.52 : x
  2. Step 2: Convert to fraction form
    187,807.36/259,173.12 = 102,921.52/x
  3. Step 3: Cross multiply
    187,807.36x = 259,173.12 × 102,921.52
  4. Step 4: Simplify right side
    187,807.36x = 26,674,491,453.54
  5. Step 5: Solve for x
    x = 26,674,491,453.54/187,807.36
  6. Step 6: Final answer
    x = 142,031.13

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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.