Home / 107,422.20-161,084.70-40,840.20

Finding the Fourth Proportional to 107,422.20, 161,084.70 and 40,840.20

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Solution

The fourth proportional to 107,422.20, 161,084.70 and 40,840.20 is: 61,241.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,422.20 : 161,084.70 = 40,840.20 : x
  2. Step 2: Convert to fraction form
    107,422.20/161,084.70 = 40,840.20/x
  3. Step 3: Cross multiply
    107,422.20x = 161,084.70 × 40,840.20
  4. Step 4: Simplify right side
    107,422.20x = 6,578,731,364.94
  5. Step 5: Solve for x
    x = 6,578,731,364.94/107,422.20
  6. Step 6: Final answer
    x = 61,241.82

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1.5x scale

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.