Home / 189,464.66-261,461.45-104,581.72

Finding the Fourth Proportional to 189,464.66, 261,461.45 and 104,581.72

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Solution

The fourth proportional to 189,464.66, 261,461.45 and 104,581.72 is: 144,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,464.66 : 261,461.45 = 104,581.72 : x
  2. Step 2: Convert to fraction form
    189,464.66/261,461.45 = 104,581.72/x
  3. Step 3: Cross multiply
    189,464.66x = 261,461.45 × 104,581.72
  4. Step 4: Simplify right side
    189,464.66x = 27,344,088,154.69
  5. Step 5: Solve for x
    x = 27,344,088,154.69/189,464.66
  6. Step 6: Final answer
    x = 144,322.89

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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.