Home / 118,727.64-177,808.77-68,702.31

Finding the Fourth Proportional to 118,727.64, 177,808.77 and 68,702.31

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Solution

The fourth proportional to 118,727.64, 177,808.77 and 68,702.31 is: 102,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,727.64 : 177,808.77 = 68,702.31 : x
  2. Step 2: Convert to fraction form
    118,727.64/177,808.77 = 68,702.31/x
  3. Step 3: Cross multiply
    118,727.64x = 177,808.77 × 68,702.31
  4. Step 4: Simplify right side
    118,727.64x = 12,215,873,237.26
  5. Step 5: Solve for x
    x = 12,215,873,237.26/118,727.64
  6. Step 6: Final answer
    x = 102,889.89

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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.