Home / 128,002.36-192,006.33-39,253.90

Finding the Fourth Proportional to 128,002.36, 192,006.33 and 39,253.90

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Solution

The fourth proportional to 128,002.36, 192,006.33 and 39,253.90 is: 58,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002.36 : 192,006.33 = 39,253.90 : x
  2. Step 2: Convert to fraction form
    128,002.36/192,006.33 = 39,253.90/x
  3. Step 3: Cross multiply
    128,002.36x = 192,006.33 × 39,253.90
  4. Step 4: Simplify right side
    128,002.36x = 7,536,997,277.19
  5. Step 5: Solve for x
    x = 7,536,997,277.19/128,002.36
  6. Step 6: Final answer
    x = 58,881.71

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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.