Home / 127,009.48-175,192.76-81,609.44

Finding the Fourth Proportional to 127,009.48, 175,192.76 and 81,609.44

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Solution

The fourth proportional to 127,009.48, 175,192.76 and 81,609.44 is: 112,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,009.48 : 175,192.76 = 81,609.44 : x
  2. Step 2: Convert to fraction form
    127,009.48/175,192.76 = 81,609.44/x
  3. Step 3: Cross multiply
    127,009.48x = 175,192.76 × 81,609.44
  4. Step 4: Simplify right side
    127,009.48x = 14,297,383,035.65
  5. Step 5: Solve for x
    x = 14,297,383,035.65/127,009.48
  6. Step 6: Final answer
    x = 112,569.42

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1.5x scale

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.