Home / 136,143.74-187,883.15-75,716.93

Finding the Fourth Proportional to 136,143.74, 187,883.15 and 75,716.93

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Solution

The fourth proportional to 136,143.74, 187,883.15 and 75,716.93 is: 104,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,143.74 : 187,883.15 = 75,716.93 : x
  2. Step 2: Convert to fraction form
    136,143.74/187,883.15 = 75,716.93/x
  3. Step 3: Cross multiply
    136,143.74x = 187,883.15 × 75,716.93
  4. Step 4: Simplify right side
    136,143.74x = 14,225,933,998.73
  5. Step 5: Solve for x
    x = 14,225,933,998.73/136,143.74
  6. Step 6: Final answer
    x = 104,492.02

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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.