Home / 107,904.20-161,856.30-55,416.20

Finding the Fourth Proportional to 107,904.20, 161,856.30 and 55,416.20

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Solution

The fourth proportional to 107,904.20, 161,856.30 and 55,416.20 is: 83,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,904.20 : 161,856.30 = 55,416.20 : x
  2. Step 2: Convert to fraction form
    107,904.20/161,856.30 = 55,416.20/x
  3. Step 3: Cross multiply
    107,904.20x = 161,856.30 × 55,416.20
  4. Step 4: Simplify right side
    107,904.20x = 8,969,461,092.06
  5. Step 5: Solve for x
    x = 8,969,461,092.06/107,904.20
  6. Step 6: Final answer
    x = 83,124.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.