Home / 189,620.20-261,678.18-104,746.60

Finding the Fourth Proportional to 189,620.20, 261,678.18 and 104,746.60

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Solution

The fourth proportional to 189,620.20, 261,678.18 and 104,746.60 is: 144,551.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,620.20 : 261,678.18 = 104,746.60 : x
  2. Step 2: Convert to fraction form
    189,620.20/261,678.18 = 104,746.60/x
  3. Step 3: Cross multiply
    189,620.20x = 261,678.18 × 104,746.60
  4. Step 4: Simplify right side
    189,620.20x = 27,409,899,649.19
  5. Step 5: Solve for x
    x = 27,409,899,649.19/189,620.20
  6. Step 6: Final answer
    x = 144,551.58

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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.