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Finding the Fourth Proportional to 189,102.40, 260,959.92 and 104,219.52

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Solution

The fourth proportional to 189,102.40, 260,959.92 and 104,219.52 is: 143,822.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,102.40 : 260,959.92 = 104,219.52 : x
  2. Step 2: Convert to fraction form
    189,102.40/260,959.92 = 104,219.52/x
  3. Step 3: Cross multiply
    189,102.40x = 260,959.92 × 104,219.52
  4. Step 4: Simplify right side
    189,102.40x = 27,197,117,601.64
  5. Step 5: Solve for x
    x = 27,197,117,601.64/189,102.40
  6. Step 6: Final answer
    x = 143,822.17

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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.