Home / 156,991.48-216,653.93-89,936.44

Finding the Fourth Proportional to 156,991.48, 216,653.93 and 89,936.44

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Solution

The fourth proportional to 156,991.48, 216,653.93 and 89,936.44 is: 124,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,991.48 : 216,653.93 = 89,936.44 : x
  2. Step 2: Convert to fraction form
    156,991.48/216,653.93 = 89,936.44/x
  3. Step 3: Cross multiply
    156,991.48x = 216,653.93 × 89,936.44
  4. Step 4: Simplify right side
    156,991.48x = 19,485,083,176.21
  5. Step 5: Solve for x
    x = 19,485,083,176.21/156,991.48
  6. Step 6: Final answer
    x = 124,115.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.