Home / 125,411.04-188,122.32-31,917.60

Finding the Fourth Proportional to 125,411.04, 188,122.32 and 31,917.60

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Solution

The fourth proportional to 125,411.04, 188,122.32 and 31,917.60 is: 47,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,411.04 : 188,122.32 = 31,917.60 : x
  2. Step 2: Convert to fraction form
    125,411.04/188,122.32 = 31,917.60/x
  3. Step 3: Cross multiply
    125,411.04x = 188,122.32 × 31,917.60
  4. Step 4: Simplify right side
    125,411.04x = 6,004,412,960.83
  5. Step 5: Solve for x
    x = 6,004,412,960.83/125,411.04
  6. Step 6: Final answer
    x = 47,877.87

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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.