Home / 107,659.61-148,416.28-75,729.41

Finding the Fourth Proportional to 107,659.61, 148,416.28 and 75,729.41

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Solution

The fourth proportional to 107,659.61, 148,416.28 and 75,729.41 is: 104,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,659.61 : 148,416.28 = 75,729.41 : x
  2. Step 2: Convert to fraction form
    107,659.61/148,416.28 = 75,729.41/x
  3. Step 3: Cross multiply
    107,659.61x = 148,416.28 × 75,729.41
  4. Step 4: Simplify right side
    107,659.61x = 11,239,477,318.79
  5. Step 5: Solve for x
    x = 11,239,477,318.79/107,659.61
  6. Step 6: Final answer
    x = 104,398.27

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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.