Home / 114,771.60-158,345.28-71,721.72

Finding the Fourth Proportional to 114,771.60, 158,345.28 and 71,721.72

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Solution

The fourth proportional to 114,771.60, 158,345.28 and 71,721.72 is: 98,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,771.60 : 158,345.28 = 71,721.72 : x
  2. Step 2: Convert to fraction form
    114,771.60/158,345.28 = 71,721.72/x
  3. Step 3: Cross multiply
    114,771.60x = 158,345.28 × 71,721.72
  4. Step 4: Simplify right side
    114,771.60x = 11,356,795,835.48
  5. Step 5: Solve for x
    x = 11,356,795,835.48/114,771.60
  6. Step 6: Final answer
    x = 98,951.27

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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.