Home / 137,441.91-189,652.22-76,997.69

Finding the Fourth Proportional to 137,441.91, 189,652.22 and 76,997.69

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Solution

The fourth proportional to 137,441.91, 189,652.22 and 76,997.69 is: 106,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,441.91 : 189,652.22 = 76,997.69 : x
  2. Step 2: Convert to fraction form
    137,441.91/189,652.22 = 76,997.69/x
  3. Step 3: Cross multiply
    137,441.91x = 189,652.22 × 76,997.69
  4. Step 4: Simplify right side
    137,441.91x = 14,602,782,510.06
  5. Step 5: Solve for x
    x = 14,602,782,510.06/137,441.91
  6. Step 6: Final answer
    x = 106,246.94

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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.