Home / 78,127.15-117,193.62-40,166.26

Finding the Fourth Proportional to 78,127.15, 117,193.62 and 40,166.26

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Solution

The fourth proportional to 78,127.15, 117,193.62 and 40,166.26 is: 60,250.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,127.15 : 117,193.62 = 40,166.26 : x
  2. Step 2: Convert to fraction form
    78,127.15/117,193.62 = 40,166.26/x
  3. Step 3: Cross multiply
    78,127.15x = 117,193.62 × 40,166.26
  4. Step 4: Simplify right side
    78,127.15x = 4,707,229,411.26
  5. Step 5: Solve for x
    x = 4,707,229,411.26/78,127.15
  6. Step 6: Final answer
    x = 60,250.88

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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.