Home / 107,659.47-148,416.10-75,729.27

Finding the Fourth Proportional to 107,659.47, 148,416.10 and 75,729.27

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Solution

The fourth proportional to 107,659.47, 148,416.10 and 75,729.27 is: 104,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,659.47 : 148,416.10 = 75,729.27 : x
  2. Step 2: Convert to fraction form
    107,659.47/148,416.10 = 75,729.27/x
  3. Step 3: Cross multiply
    107,659.47x = 148,416.10 × 75,729.27
  4. Step 4: Simplify right side
    107,659.47x = 11,239,442,719.92
  5. Step 5: Solve for x
    x = 11,239,442,719.92/107,659.47
  6. Step 6: Final answer
    x = 104,398.09

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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.