Home / 187,159.73-258,286.07-102,278.21

Finding the Fourth Proportional to 187,159.73, 258,286.07 and 102,278.21

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Solution

The fourth proportional to 187,159.73, 258,286.07 and 102,278.21 is: 141,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,159.73 : 258,286.07 = 102,278.21 : x
  2. Step 2: Convert to fraction form
    187,159.73/258,286.07 = 102,278.21/x
  3. Step 3: Cross multiply
    187,159.73x = 258,286.07 × 102,278.21
  4. Step 4: Simplify right side
    187,159.73x = 26,417,036,396.14
  5. Step 5: Solve for x
    x = 26,417,036,396.14/187,159.73
  6. Step 6: Final answer
    x = 141,147.01

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1.5x scale

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.