Home / 189,861.94-262,017.68-104,979

Finding the Fourth Proportional to 189,861.94, 262,017.68 and 104,979

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Solution

The fourth proportional to 189,861.94, 262,017.68 and 104,979 is: 144,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,861.94 : 262,017.68 = 104,979 : x
  2. Step 2: Convert to fraction form
    189,861.94/262,017.68 = 104,979/x
  3. Step 3: Cross multiply
    189,861.94x = 262,017.68 × 104,979
  4. Step 4: Simplify right side
    189,861.94x = 27,506,354,028.72
  5. Step 5: Solve for x
    x = 27,506,354,028.72/189,861.94
  6. Step 6: Final answer
    x = 144,875.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.