Home / 187,261.88-258,421.39-102,378.94

Finding the Fourth Proportional to 187,261.88, 258,421.39 and 102,378.94

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Solution

The fourth proportional to 187,261.88, 258,421.39 and 102,378.94 is: 141,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,261.88 : 258,421.39 = 102,378.94 : x
  2. Step 2: Convert to fraction form
    187,261.88/258,421.39 = 102,378.94/x
  3. Step 3: Cross multiply
    187,261.88x = 258,421.39 × 102,378.94
  4. Step 4: Simplify right side
    187,261.88x = 26,456,907,079.53
  5. Step 5: Solve for x
    x = 26,456,907,079.53/187,261.88
  6. Step 6: Final answer
    x = 141,282.93

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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.