Home / 137,124.22-189,227.64-76,694.98

Finding the Fourth Proportional to 137,124.22, 189,227.64 and 76,694.98

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Solution

The fourth proportional to 137,124.22, 189,227.64 and 76,694.98 is: 105,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,124.22 : 189,227.64 = 76,694.98 : x
  2. Step 2: Convert to fraction form
    137,124.22/189,227.64 = 76,694.98/x
  3. Step 3: Cross multiply
    137,124.22x = 189,227.64 × 76,694.98
  4. Step 4: Simplify right side
    137,124.22x = 14,512,810,065.25
  5. Step 5: Solve for x
    x = 14,512,810,065.25/137,124.22
  6. Step 6: Final answer
    x = 105,836.96

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1.5x scale

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.