Home / 115,845.96-159,784.98-106,316.64

Finding the Fourth Proportional to 115,845.96, 159,784.98 and 106,316.64

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Solution

The fourth proportional to 115,845.96, 159,784.98 and 106,316.64 is: 146,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.96 : 159,784.98 = 106,316.64 : x
  2. Step 2: Convert to fraction form
    115,845.96/159,784.98 = 106,316.64/x
  3. Step 3: Cross multiply
    115,845.96x = 159,784.98 × 106,316.64
  4. Step 4: Simplify right side
    115,845.96x = 16,987,802,196.07
  5. Step 5: Solve for x
    x = 16,987,802,196.07/115,845.96
  6. Step 6: Final answer
    x = 146,641.30

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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.