Home / 107,326.35-148,287.51-80,557.47

Finding the Fourth Proportional to 107,326.35, 148,287.51 and 80,557.47

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Solution

The fourth proportional to 107,326.35, 148,287.51 and 80,557.47 is: 111,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,326.35 : 148,287.51 = 80,557.47 : x
  2. Step 2: Convert to fraction form
    107,326.35/148,287.51 = 80,557.47/x
  3. Step 3: Cross multiply
    107,326.35x = 148,287.51 × 80,557.47
  4. Step 4: Simplify right side
    107,326.35x = 11,945,666,638.20
  5. Step 5: Solve for x
    x = 11,945,666,638.20/107,326.35
  6. Step 6: Final answer
    x = 111,302.27

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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.