Home / 128,577.15-192,896.52-53,655.62

Finding the Fourth Proportional to 128,577.15, 192,896.52 and 53,655.62

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Solution

The fourth proportional to 128,577.15, 192,896.52 and 53,655.62 is: 80,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,577.15 : 192,896.52 = 53,655.62 : x
  2. Step 2: Convert to fraction form
    128,577.15/192,896.52 = 53,655.62/x
  3. Step 3: Cross multiply
    128,577.15x = 192,896.52 × 53,655.62
  4. Step 4: Simplify right side
    128,577.15x = 10,349,982,376.44
  5. Step 5: Solve for x
    x = 10,349,982,376.44/128,577.15
  6. Step 6: Final answer
    x = 80,496.28

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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.