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Finding the Fourth Proportional to 128,052.01, 192,078.06 and 34,557.76

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Solution

The fourth proportional to 128,052.01, 192,078.06 and 34,557.76 is: 51,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,052.01 : 192,078.06 = 34,557.76 : x
  2. Step 2: Convert to fraction form
    128,052.01/192,078.06 = 34,557.76/x
  3. Step 3: Cross multiply
    128,052.01x = 192,078.06 × 34,557.76
  4. Step 4: Simplify right side
    128,052.01x = 6,637,787,498.75
  5. Step 5: Solve for x
    x = 6,637,787,498.75/128,052.01
  6. Step 6: Final answer
    x = 51,836.65

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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.