Home / 107,557.20-161,724.60-105,224.40

Finding the Fourth Proportional to 107,557.20, 161,724.60 and 105,224.40

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Solution

The fourth proportional to 107,557.20, 161,724.60 and 105,224.40 is: 158,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,557.20 : 161,724.60 = 105,224.40 : x
  2. Step 2: Convert to fraction form
    107,557.20/161,724.60 = 105,224.40/x
  3. Step 3: Cross multiply
    107,557.20x = 161,724.60 × 105,224.40
  4. Step 4: Simplify right side
    107,557.20x = 17,017,374,000.24
  5. Step 5: Solve for x
    x = 17,017,374,000.24/107,557.20
  6. Step 6: Final answer
    x = 158,216.97

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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.