Home / 107,728.56-148,642.92-62,403.84

Finding the Fourth Proportional to 107,728.56, 148,642.92 and 62,403.84

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Solution

The fourth proportional to 107,728.56, 148,642.92 and 62,403.84 is: 86,104.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,728.56 : 148,642.92 = 62,403.84 : x
  2. Step 2: Convert to fraction form
    107,728.56/148,642.92 = 62,403.84/x
  3. Step 3: Cross multiply
    107,728.56x = 148,642.92 × 62,403.84
  4. Step 4: Simplify right side
    107,728.56x = 9,275,888,996.81
  5. Step 5: Solve for x
    x = 9,275,888,996.81/107,728.56
  6. Step 6: Final answer
    x = 86,104.27

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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.