Home / 105,918.48-146,174.66-58,172.32

Finding the Fourth Proportional to 105,918.48, 146,174.66 and 58,172.32

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Solution

The fourth proportional to 105,918.48, 146,174.66 and 58,172.32 is: 80,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,918.48 : 146,174.66 = 58,172.32 : x
  2. Step 2: Convert to fraction form
    105,918.48/146,174.66 = 58,172.32/x
  3. Step 3: Cross multiply
    105,918.48x = 146,174.66 × 58,172.32
  4. Step 4: Simplify right side
    105,918.48x = 8,503,319,207.41
  5. Step 5: Solve for x
    x = 8,503,319,207.41/105,918.48
  6. Step 6: Final answer
    x = 80,281.73

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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.