Home / 125,785.60-188,425.12-58,222.40

Finding the Fourth Proportional to 125,785.60, 188,425.12 and 58,222.40

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Solution

The fourth proportional to 125,785.60, 188,425.12 and 58,222.40 is: 87,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,785.60 : 188,425.12 = 58,222.40 : x
  2. Step 2: Convert to fraction form
    125,785.60/188,425.12 = 58,222.40/x
  3. Step 3: Cross multiply
    125,785.60x = 188,425.12 × 58,222.40
  4. Step 4: Simplify right side
    125,785.60x = 10,970,562,706.69
  5. Step 5: Solve for x
    x = 10,970,562,706.69/125,785.60
  6. Step 6: Final answer
    x = 87,216.36

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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.