Home / 125,509.16-188,076.87-69,365.43

Finding the Fourth Proportional to 125,509.16, 188,076.87 and 69,365.43

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Solution

The fourth proportional to 125,509.16, 188,076.87 and 69,365.43 is: 103,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,509.16 : 188,076.87 = 69,365.43 : x
  2. Step 2: Convert to fraction form
    125,509.16/188,076.87 = 69,365.43/x
  3. Step 3: Cross multiply
    125,509.16x = 188,076.87 × 69,365.43
  4. Step 4: Simplify right side
    125,509.16x = 13,046,032,960.60
  5. Step 5: Solve for x
    x = 13,046,032,960.60/125,509.16
  6. Step 6: Final answer
    x = 103,944.87

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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.