Home / 189,918.37-284,772.43-77,677.39

Finding the Fourth Proportional to 189,918.37, 284,772.43 and 77,677.39

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Solution

The fourth proportional to 189,918.37, 284,772.43 and 77,677.39 is: 116,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,918.37 : 284,772.43 = 77,677.39 : x
  2. Step 2: Convert to fraction form
    189,918.37/284,772.43 = 77,677.39/x
  3. Step 3: Cross multiply
    189,918.37x = 284,772.43 × 77,677.39
  4. Step 4: Simplify right side
    189,918.37x = 22,120,379,106.36
  5. Step 5: Solve for x
    x = 22,120,379,106.36/189,918.37
  6. Step 6: Final answer
    x = 116,473.09

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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.