Home / 127,654.48-176,189.88-76,669.58

Finding the Fourth Proportional to 127,654.48, 176,189.88 and 76,669.58

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Solution

The fourth proportional to 127,654.48, 176,189.88 and 76,669.58 is: 105,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,654.48 : 176,189.88 = 76,669.58 : x
  2. Step 2: Convert to fraction form
    127,654.48/176,189.88 = 76,669.58/x
  3. Step 3: Cross multiply
    127,654.48x = 176,189.88 × 76,669.58
  4. Step 4: Simplify right side
    127,654.48x = 13,508,404,099.85
  5. Step 5: Solve for x
    x = 13,508,404,099.85/127,654.48
  6. Step 6: Final answer
    x = 105,820.06

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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.