Home / 135,205.11-186,582.68-77,823.47

Finding the Fourth Proportional to 135,205.11, 186,582.68 and 77,823.47

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Solution

The fourth proportional to 135,205.11, 186,582.68 and 77,823.47 is: 107,396.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,205.11 : 186,582.68 = 77,823.47 : x
  2. Step 2: Convert to fraction form
    135,205.11/186,582.68 = 77,823.47/x
  3. Step 3: Cross multiply
    135,205.11x = 186,582.68 × 77,823.47
  4. Step 4: Simplify right side
    135,205.11x = 14,520,510,277.47
  5. Step 5: Solve for x
    x = 14,520,510,277.47/135,205.11
  6. Step 6: Final answer
    x = 107,396.16

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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.