Home / 126,436.37-189,681.89-67,263.44

Finding the Fourth Proportional to 126,436.37, 189,681.89 and 67,263.44

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Solution

The fourth proportional to 126,436.37, 189,681.89 and 67,263.44 is: 100,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,436.37 : 189,681.89 = 67,263.44 : x
  2. Step 2: Convert to fraction form
    126,436.37/189,681.89 = 67,263.44/x
  3. Step 3: Cross multiply
    126,436.37x = 189,681.89 × 67,263.44
  4. Step 4: Simplify right side
    126,436.37x = 12,758,655,142.38
  5. Step 5: Solve for x
    x = 12,758,655,142.38/126,436.37
  6. Step 6: Final answer
    x = 100,909.70

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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.