Home / 189,455.72-261,448.92-104,572.80

Finding the Fourth Proportional to 189,455.72, 261,448.92 and 104,572.80

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Solution

The fourth proportional to 189,455.72, 261,448.92 and 104,572.80 is: 144,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,455.72 : 261,448.92 = 104,572.80 : x
  2. Step 2: Convert to fraction form
    189,455.72/261,448.92 = 104,572.80/x
  3. Step 3: Cross multiply
    189,455.72x = 261,448.92 × 104,572.80
  4. Step 4: Simplify right side
    189,455.72x = 27,340,446,209.66
  5. Step 5: Solve for x
    x = 27,340,446,209.66/189,455.72
  6. Step 6: Final answer
    x = 144,310.48

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1.5x scale

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.