Home / 189,905.82-284,795.55-69,935.10

Finding the Fourth Proportional to 189,905.82, 284,795.55 and 69,935.10

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Solution

The fourth proportional to 189,905.82, 284,795.55 and 69,935.10 is: 104,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,905.82 : 284,795.55 = 69,935.10 : x
  2. Step 2: Convert to fraction form
    189,905.82/284,795.55 = 69,935.10/x
  3. Step 3: Cross multiply
    189,905.82x = 284,795.55 × 69,935.10
  4. Step 4: Simplify right side
    189,905.82x = 19,917,205,268.81
  5. Step 5: Solve for x
    x = 19,917,205,268.81/189,905.82
  6. Step 6: Final answer
    x = 104,879.38

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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.