Home / 105,610.22-145,743.60-63,160.55

Finding the Fourth Proportional to 105,610.22, 145,743.60 and 63,160.55

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Solution

The fourth proportional to 105,610.22, 145,743.60 and 63,160.55 is: 87,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,610.22 : 145,743.60 = 63,160.55 : x
  2. Step 2: Convert to fraction form
    105,610.22/145,743.60 = 63,160.55/x
  3. Step 3: Cross multiply
    105,610.22x = 145,743.60 × 63,160.55
  4. Step 4: Simplify right side
    105,610.22x = 9,205,245,206.26
  5. Step 5: Solve for x
    x = 9,205,245,206.26/105,610.22
  6. Step 6: Final answer
    x = 87,162.45

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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.