Home / 107,113.42-159,712.49-104,170.78

Finding the Fourth Proportional to 107,113.42, 159,712.49 and 104,170.78

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Solution

The fourth proportional to 107,113.42, 159,712.49 and 104,170.78 is: 155,324.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,113.42 : 159,712.49 = 104,170.78 : x
  2. Step 2: Convert to fraction form
    107,113.42/159,712.49 = 104,170.78/x
  3. Step 3: Cross multiply
    107,113.42x = 159,712.49 × 104,170.78
  4. Step 4: Simplify right side
    107,113.42x = 16,637,374,659.04
  5. Step 5: Solve for x
    x = 16,637,374,659.04/107,113.42
  6. Step 6: Final answer
    x = 155,324.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.