Home / 126,376.88-189,711.11-64,178.60

Finding the Fourth Proportional to 126,376.88, 189,711.11 and 64,178.60

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Solution

The fourth proportional to 126,376.88, 189,711.11 and 64,178.60 is: 96,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,376.88 : 189,711.11 = 64,178.60 : x
  2. Step 2: Convert to fraction form
    126,376.88/189,711.11 = 64,178.60/x
  3. Step 3: Cross multiply
    126,376.88x = 189,711.11 × 64,178.60
  4. Step 4: Simplify right side
    126,376.88x = 12,175,392,656.14
  5. Step 5: Solve for x
    x = 12,175,392,656.14/126,376.88
  6. Step 6: Final answer
    x = 96,341.93

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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.