Home / 107,389.92-161,052-51,200.40

Finding the Fourth Proportional to 107,389.92, 161,052 and 51,200.40

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Solution

The fourth proportional to 107,389.92, 161,052 and 51,200.40 is: 76,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,389.92 : 161,052 = 51,200.40 : x
  2. Step 2: Convert to fraction form
    107,389.92/161,052 = 51,200.40/x
  3. Step 3: Cross multiply
    107,389.92x = 161,052 × 51,200.40
  4. Step 4: Simplify right side
    107,389.92x = 8,245,926,820.80
  5. Step 5: Solve for x
    x = 8,245,926,820.80/107,389.92
  6. Step 6: Final answer
    x = 76,784.92

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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.