Home / 126,560.84-190,186.14-67,438.76

Finding the Fourth Proportional to 126,560.84, 190,186.14 and 67,438.76

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Solution

The fourth proportional to 126,560.84, 190,186.14 and 67,438.76 is: 101,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,560.84 : 190,186.14 = 67,438.76 : x
  2. Step 2: Convert to fraction form
    126,560.84/190,186.14 = 67,438.76/x
  3. Step 3: Cross multiply
    126,560.84x = 190,186.14 × 67,438.76
  4. Step 4: Simplify right side
    126,560.84x = 12,825,917,450.79
  5. Step 5: Solve for x
    x = 12,825,917,450.79/126,560.84
  6. Step 6: Final answer
    x = 101,341.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.