Home / 107,516.88-161,122.60-79,214.40

Finding the Fourth Proportional to 107,516.88, 161,122.60 and 79,214.40

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Solution

The fourth proportional to 107,516.88, 161,122.60 and 79,214.40 is: 118,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,516.88 : 161,122.60 = 79,214.40 : x
  2. Step 2: Convert to fraction form
    107,516.88/161,122.60 = 79,214.40/x
  3. Step 3: Cross multiply
    107,516.88x = 161,122.60 × 79,214.40
  4. Step 4: Simplify right side
    107,516.88x = 12,763,230,085.44
  5. Step 5: Solve for x
    x = 12,763,230,085.44/107,516.88
  6. Step 6: Final answer
    x = 118,709.08

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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.