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Finding the Fourth Proportional to 128,010.84, 191,993.18 and 34,494.76

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Solution

The fourth proportional to 128,010.84, 191,993.18 and 34,494.76 is: 51,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010.84 : 191,993.18 = 34,494.76 : x
  2. Step 2: Convert to fraction form
    128,010.84/191,993.18 = 34,494.76/x
  3. Step 3: Cross multiply
    128,010.84x = 191,993.18 × 34,494.76
  4. Step 4: Simplify right side
    128,010.84x = 6,622,758,665.74
  5. Step 5: Solve for x
    x = 6,622,758,665.74/128,010.84
  6. Step 6: Final answer
    x = 51,735.92

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1.5x scale

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.