Home / 138,025.91-190,474.61-77,596.82

Finding the Fourth Proportional to 138,025.91, 190,474.61 and 77,596.82

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Solution

The fourth proportional to 138,025.91, 190,474.61 and 77,596.82 is: 107,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,025.91 : 190,474.61 = 77,596.82 : x
  2. Step 2: Convert to fraction form
    138,025.91/190,474.61 = 77,596.82/x
  3. Step 3: Cross multiply
    138,025.91x = 190,474.61 × 77,596.82
  4. Step 4: Simplify right side
    138,025.91x = 14,780,225,126.81
  5. Step 5: Solve for x
    x = 14,780,225,126.81/138,025.91
  6. Step 6: Final answer
    x = 107,082.97

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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.