Home / 107,420.48-161,134.77-40,848.20

Finding the Fourth Proportional to 107,420.48, 161,134.77 and 40,848.20

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Solution

The fourth proportional to 107,420.48, 161,134.77 and 40,848.20 is: 61,273.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,420.48 : 161,134.77 = 40,848.20 : x
  2. Step 2: Convert to fraction form
    107,420.48/161,134.77 = 40,848.20/x
  3. Step 3: Cross multiply
    107,420.48x = 161,134.77 × 40,848.20
  4. Step 4: Simplify right side
    107,420.48x = 6,582,065,311.91
  5. Step 5: Solve for x
    x = 6,582,065,311.91/107,420.48
  6. Step 6: Final answer
    x = 61,273.84

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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.