Home / 210,485.32-315,583.87-75,546.39

Finding the Fourth Proportional to 210,485.32, 315,583.87 and 75,546.39

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Solution

The fourth proportional to 210,485.32, 315,583.87 and 75,546.39 is: 113,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,485.32 : 315,583.87 = 75,546.39 : x
  2. Step 2: Convert to fraction form
    210,485.32/315,583.87 = 75,546.39/x
  3. Step 3: Cross multiply
    210,485.32x = 315,583.87 × 75,546.39
  4. Step 4: Simplify right side
    210,485.32x = 23,841,223,150.72
  5. Step 5: Solve for x
    x = 23,841,223,150.72/210,485.32
  6. Step 6: Final answer
    x = 113,267.87

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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.