Home / 165,122.15-247,515.10-65,145.11

Finding the Fourth Proportional to 165,122.15, 247,515.10 and 65,145.11

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Solution

The fourth proportional to 165,122.15, 247,515.10 and 65,145.11 is: 97,651.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,122.15 : 247,515.10 = 65,145.11 : x
  2. Step 2: Convert to fraction form
    165,122.15/247,515.10 = 65,145.11/x
  3. Step 3: Cross multiply
    165,122.15x = 247,515.10 × 65,145.11
  4. Step 4: Simplify right side
    165,122.15x = 16,124,397,015.72
  5. Step 5: Solve for x
    x = 16,124,397,015.72/165,122.15
  6. Step 6: Final answer
    x = 97,651.33

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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.