Home / 128,553.03-192,909.20-61,999.83

Finding the Fourth Proportional to 128,553.03, 192,909.20 and 61,999.83

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Solution

The fourth proportional to 128,553.03, 192,909.20 and 61,999.83 is: 93,038.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,553.03 : 192,909.20 = 61,999.83 : x
  2. Step 2: Convert to fraction form
    128,553.03/192,909.20 = 61,999.83/x
  3. Step 3: Cross multiply
    128,553.03x = 192,909.20 × 61,999.83
  4. Step 4: Simplify right side
    128,553.03x = 11,960,337,295.44
  5. Step 5: Solve for x
    x = 11,960,337,295.44/128,553.03
  6. Step 6: Final answer
    x = 93,038.16

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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.