Home / 128,520.03-192,749.00-49,583.91

Finding the Fourth Proportional to 128,520.03, 192,749.00 and 49,583.91

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Solution

The fourth proportional to 128,520.03, 192,749.00 and 49,583.91 is: 74,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,520.03 : 192,749.00 = 49,583.91 : x
  2. Step 2: Convert to fraction form
    128,520.03/192,749.00 = 49,583.91/x
  3. Step 3: Cross multiply
    128,520.03x = 192,749.00 × 49,583.91
  4. Step 4: Simplify right side
    128,520.03x = 9,557,248,820.67
  5. Step 5: Solve for x
    x = 9,557,248,820.67/128,520.03
  6. Step 6: Final answer
    x = 74,363.89

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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.