Home / 189,730.78-261,828.39-104,847.10

Finding the Fourth Proportional to 189,730.78, 261,828.39 and 104,847.10

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Solution

The fourth proportional to 189,730.78, 261,828.39 and 104,847.10 is: 144,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,730.78 : 261,828.39 = 104,847.10 : x
  2. Step 2: Convert to fraction form
    189,730.78/261,828.39 = 104,847.10/x
  3. Step 3: Cross multiply
    189,730.78x = 261,828.39 × 104,847.10
  4. Step 4: Simplify right side
    189,730.78x = 27,451,947,389.17
  5. Step 5: Solve for x
    x = 27,451,947,389.17/189,730.78
  6. Step 6: Final answer
    x = 144,688.95

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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.