Home / 125,548.10-188,322.46-30,778.70

Finding the Fourth Proportional to 125,548.10, 188,322.46 and 30,778.70

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Solution

The fourth proportional to 125,548.10, 188,322.46 and 30,778.70 is: 46,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,548.10 : 188,322.46 = 30,778.70 : x
  2. Step 2: Convert to fraction form
    125,548.10/188,322.46 = 30,778.70/x
  3. Step 3: Cross multiply
    125,548.10x = 188,322.46 × 30,778.70
  4. Step 4: Simplify right side
    125,548.10x = 5,796,320,499.60
  5. Step 5: Solve for x
    x = 5,796,320,499.60/125,548.10
  6. Step 6: Final answer
    x = 46,168.13

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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.