Home / 125,429.84-188,078.52-55,275.92

Finding the Fourth Proportional to 125,429.84, 188,078.52 and 55,275.92

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Solution

The fourth proportional to 125,429.84, 188,078.52 and 55,275.92 is: 82,884.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,429.84 : 188,078.52 = 55,275.92 : x
  2. Step 2: Convert to fraction form
    125,429.84/188,078.52 = 55,275.92/x
  3. Step 3: Cross multiply
    125,429.84x = 188,078.52 × 55,275.92
  4. Step 4: Simplify right side
    125,429.84x = 10,396,213,225.24
  5. Step 5: Solve for x
    x = 10,396,213,225.24/125,429.84
  6. Step 6: Final answer
    x = 82,884.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.