Home / 187,855.36-259,246.40-102,977.76

Finding the Fourth Proportional to 187,855.36, 259,246.40 and 102,977.76

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Solution

The fourth proportional to 187,855.36, 259,246.40 and 102,977.76 is: 142,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,855.36 : 259,246.40 = 102,977.76 : x
  2. Step 2: Convert to fraction form
    187,855.36/259,246.40 = 102,977.76/x
  3. Step 3: Cross multiply
    187,855.36x = 259,246.40 × 102,977.76
  4. Step 4: Simplify right side
    187,855.36x = 26,696,613,560.06
  5. Step 5: Solve for x
    x = 26,696,613,560.06/187,855.36
  6. Step 6: Final answer
    x = 142,112.60

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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.