Home / 128,179.67-192,262.21-34,678.13

Finding the Fourth Proportional to 128,179.67, 192,262.21 and 34,678.13

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Solution

The fourth proportional to 128,179.67, 192,262.21 and 34,678.13 is: 52,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,179.67 : 192,262.21 = 34,678.13 : x
  2. Step 2: Convert to fraction form
    128,179.67/192,262.21 = 34,678.13/x
  3. Step 3: Cross multiply
    128,179.67x = 192,262.21 × 34,678.13
  4. Step 4: Simplify right side
    128,179.67x = 6,667,292,864.46
  5. Step 5: Solve for x
    x = 6,667,292,864.46/128,179.67
  6. Step 6: Final answer
    x = 52,015.22

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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.