Home / 107,401.68-148,269.96-100,334.16

Finding the Fourth Proportional to 107,401.68, 148,269.96 and 100,334.16

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Solution

The fourth proportional to 107,401.68, 148,269.96 and 100,334.16 is: 138,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,401.68 : 148,269.96 = 100,334.16 : x
  2. Step 2: Convert to fraction form
    107,401.68/148,269.96 = 100,334.16/x
  3. Step 3: Cross multiply
    107,401.68x = 148,269.96 × 100,334.16
  4. Step 4: Simplify right side
    107,401.68x = 14,876,541,889.83
  5. Step 5: Solve for x
    x = 14,876,541,889.83/107,401.68
  6. Step 6: Final answer
    x = 138,513.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.