Home / 125,751.66-188,639.82-45,811.35

Finding the Fourth Proportional to 125,751.66, 188,639.82 and 45,811.35

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Solution

The fourth proportional to 125,751.66, 188,639.82 and 45,811.35 is: 68,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,751.66 : 188,639.82 = 45,811.35 : x
  2. Step 2: Convert to fraction form
    125,751.66/188,639.82 = 45,811.35/x
  3. Step 3: Cross multiply
    125,751.66x = 188,639.82 × 45,811.35
  4. Step 4: Simplify right side
    125,751.66x = 8,641,844,817.96
  5. Step 5: Solve for x
    x = 8,641,844,817.96/125,751.66
  6. Step 6: Final answer
    x = 68,721.52

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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.