Home / 189,171.08-261,058.12-104,291.20

Finding the Fourth Proportional to 189,171.08, 261,058.12 and 104,291.20

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Solution

The fourth proportional to 189,171.08, 261,058.12 and 104,291.20 is: 143,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,171.08 : 261,058.12 = 104,291.20 : x
  2. Step 2: Convert to fraction form
    189,171.08/261,058.12 = 104,291.20/x
  3. Step 3: Cross multiply
    189,171.08x = 261,058.12 × 104,291.20
  4. Step 4: Simplify right side
    189,171.08x = 27,226,064,604.54
  5. Step 5: Solve for x
    x = 27,226,064,604.54/189,171.08
  6. Step 6: Final answer
    x = 143,922.97

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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.