Home / 107,143.83-147,860.49-58,742.55

Finding the Fourth Proportional to 107,143.83, 147,860.49 and 58,742.55

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Solution

The fourth proportional to 107,143.83, 147,860.49 and 58,742.55 is: 81,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,143.83 : 147,860.49 = 58,742.55 : x
  2. Step 2: Convert to fraction form
    107,143.83/147,860.49 = 58,742.55/x
  3. Step 3: Cross multiply
    107,143.83x = 147,860.49 × 58,742.55
  4. Step 4: Simplify right side
    107,143.83x = 8,685,702,226.85
  5. Step 5: Solve for x
    x = 8,685,702,226.85/107,143.83
  6. Step 6: Final answer
    x = 81,065.82

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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.