Home / 105,704.19-145,873.20-57,957.42

Finding the Fourth Proportional to 105,704.19, 145,873.20 and 57,957.42

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Solution

The fourth proportional to 105,704.19, 145,873.20 and 57,957.42 is: 79,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,704.19 : 145,873.20 = 57,957.42 : x
  2. Step 2: Convert to fraction form
    105,704.19/145,873.20 = 57,957.42/x
  3. Step 3: Cross multiply
    105,704.19x = 145,873.20 × 57,957.42
  4. Step 4: Simplify right side
    105,704.19x = 8,454,435,083.51
  5. Step 5: Solve for x
    x = 8,454,435,083.51/105,704.19
  6. Step 6: Final answer
    x = 79,982.02

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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.