Home / 115,367.40-173,051.10-81,906.30

Finding the Fourth Proportional to 115,367.40, 173,051.10 and 81,906.30

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Solution

The fourth proportional to 115,367.40, 173,051.10 and 81,906.30 is: 122,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,367.40 : 173,051.10 = 81,906.30 : x
  2. Step 2: Convert to fraction form
    115,367.40/173,051.10 = 81,906.30/x
  3. Step 3: Cross multiply
    115,367.40x = 173,051.10 × 81,906.30
  4. Step 4: Simplify right side
    115,367.40x = 14,173,975,311.93
  5. Step 5: Solve for x
    x = 14,173,975,311.93/115,367.40
  6. Step 6: Final answer
    x = 122,859.45

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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.