Home / 109,726.89-151,435.44-61,983.31

Finding the Fourth Proportional to 109,726.89, 151,435.44 and 61,983.31

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Solution

The fourth proportional to 109,726.89, 151,435.44 and 61,983.31 is: 85,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726.89 : 151,435.44 = 61,983.31 : x
  2. Step 2: Convert to fraction form
    109,726.89/151,435.44 = 61,983.31/x
  3. Step 3: Cross multiply
    109,726.89x = 151,435.44 × 61,983.31
  4. Step 4: Simplify right side
    109,726.89x = 9,386,469,822.51
  5. Step 5: Solve for x
    x = 9,386,469,822.51/109,726.89
  6. Step 6: Final answer
    x = 85,543.93

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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.