Home / 128,509.22-192,726.83-44,265.98

Finding the Fourth Proportional to 128,509.22, 192,726.83 and 44,265.98

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Solution

The fourth proportional to 128,509.22, 192,726.83 and 44,265.98 is: 66,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,509.22 : 192,726.83 = 44,265.98 : x
  2. Step 2: Convert to fraction form
    128,509.22/192,726.83 = 44,265.98/x
  3. Step 3: Cross multiply
    128,509.22x = 192,726.83 × 44,265.98
  4. Step 4: Simplify right side
    128,509.22x = 8,531,241,149.27
  5. Step 5: Solve for x
    x = 8,531,241,149.27/128,509.22
  6. Step 6: Final answer
    x = 66,386.22

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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.