Home / 100,963.26-139,332.96-62,743.86

Finding the Fourth Proportional to 100,963.26, 139,332.96 and 62,743.86

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Solution

The fourth proportional to 100,963.26, 139,332.96 and 62,743.86 is: 86,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,963.26 : 139,332.96 = 62,743.86 : x
  2. Step 2: Convert to fraction form
    100,963.26/139,332.96 = 62,743.86/x
  3. Step 3: Cross multiply
    100,963.26x = 139,332.96 × 62,743.86
  4. Step 4: Simplify right side
    100,963.26x = 8,742,287,735.63
  5. Step 5: Solve for x
    x = 8,742,287,735.63/100,963.26
  6. Step 6: Final answer
    x = 86,588.80

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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.