Home / 105,486.23-158,186.72-38,911.58

Finding the Fourth Proportional to 105,486.23, 158,186.72 and 38,911.58

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Solution

The fourth proportional to 105,486.23, 158,186.72 and 38,911.58 is: 58,351.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,486.23 : 158,186.72 = 38,911.58 : x
  2. Step 2: Convert to fraction form
    105,486.23/158,186.72 = 38,911.58/x
  3. Step 3: Cross multiply
    105,486.23x = 158,186.72 × 38,911.58
  4. Step 4: Simplify right side
    105,486.23x = 6,155,294,224.73
  5. Step 5: Solve for x
    x = 6,155,294,224.73/105,486.23
  6. Step 6: Final answer
    x = 58,351.64

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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.