Home / 187,895.12-259,286.28-103,015.76

Finding the Fourth Proportional to 187,895.12, 259,286.28 and 103,015.76

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Solution

The fourth proportional to 187,895.12, 259,286.28 and 103,015.76 is: 142,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,895.12 : 259,286.28 = 103,015.76 : x
  2. Step 2: Convert to fraction form
    187,895.12/259,286.28 = 103,015.76/x
  3. Step 3: Cross multiply
    187,895.12x = 259,286.28 × 103,015.76
  4. Step 4: Simplify right side
    187,895.12x = 26,710,573,191.77
  5. Step 5: Solve for x
    x = 26,710,573,191.77/187,895.12
  6. Step 6: Final answer
    x = 142,156.82

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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.