Home / 189,840.48-261,956.40-104,959.20

Finding the Fourth Proportional to 189,840.48, 261,956.40 and 104,959.20

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Solution

The fourth proportional to 189,840.48, 261,956.40 and 104,959.20 is: 144,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,840.48 : 261,956.40 = 104,959.20 : x
  2. Step 2: Convert to fraction form
    189,840.48/261,956.40 = 104,959.20/x
  3. Step 3: Cross multiply
    189,840.48x = 261,956.40 × 104,959.20
  4. Step 4: Simplify right side
    189,840.48x = 27,494,734,178.88
  5. Step 5: Solve for x
    x = 27,494,734,178.88/189,840.48
  6. Step 6: Final answer
    x = 144,830.72

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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.