Home / 189,666.92-261,746.70-104,788.64

Finding the Fourth Proportional to 189,666.92, 261,746.70 and 104,788.64

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Solution

The fourth proportional to 189,666.92, 261,746.70 and 104,788.64 is: 144,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,666.92 : 261,746.70 = 104,788.64 : x
  2. Step 2: Convert to fraction form
    189,666.92/261,746.70 = 104,788.64/x
  3. Step 3: Cross multiply
    189,666.92x = 261,746.70 × 104,788.64
  4. Step 4: Simplify right side
    189,666.92x = 27,428,080,717.49
  5. Step 5: Solve for x
    x = 27,428,080,717.49/189,666.92
  6. Step 6: Final answer
    x = 144,611.83

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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.