Home / 189,823.08-261,961.44-104,945.76

Finding the Fourth Proportional to 189,823.08, 261,961.44 and 104,945.76

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Solution

The fourth proportional to 189,823.08, 261,961.44 and 104,945.76 is: 144,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,823.08 : 261,961.44 = 104,945.76 : x
  2. Step 2: Convert to fraction form
    189,823.08/261,961.44 = 104,945.76/x
  3. Step 3: Cross multiply
    189,823.08x = 261,961.44 × 104,945.76
  4. Step 4: Simplify right side
    189,823.08x = 27,491,742,411.49
  5. Step 5: Solve for x
    x = 27,491,742,411.49/189,823.08
  6. Step 6: Final answer
    x = 144,828.24

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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.