Home / 125,550.09-188,325.47-30,780.70

Finding the Fourth Proportional to 125,550.09, 188,325.47 and 30,780.70

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Solution

The fourth proportional to 125,550.09, 188,325.47 and 30,780.70 is: 46,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,550.09 : 188,325.47 = 30,780.70 : x
  2. Step 2: Convert to fraction form
    125,550.09/188,325.47 = 30,780.70/x
  3. Step 3: Cross multiply
    125,550.09x = 188,325.47 × 30,780.70
  4. Step 4: Simplify right side
    125,550.09x = 5,796,789,400.57
  5. Step 5: Solve for x
    x = 5,796,789,400.57/125,550.09
  6. Step 6: Final answer
    x = 46,171.13

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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.