Home / 105,945.48-158,918.34-39,402.36

Finding the Fourth Proportional to 105,945.48, 158,918.34 and 39,402.36

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Solution

The fourth proportional to 105,945.48, 158,918.34 and 39,402.36 is: 59,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,945.48 : 158,918.34 = 39,402.36 : x
  2. Step 2: Convert to fraction form
    105,945.48/158,918.34 = 39,402.36/x
  3. Step 3: Cross multiply
    105,945.48x = 158,918.34 × 39,402.36
  4. Step 4: Simplify right side
    105,945.48x = 6,261,757,643.28
  5. Step 5: Solve for x
    x = 6,261,757,643.28/105,945.48
  6. Step 6: Final answer
    x = 59,103.58

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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.