Home / 189,731.28-261,829.08-104,847.60

Finding the Fourth Proportional to 189,731.28, 261,829.08 and 104,847.60

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Solution

The fourth proportional to 189,731.28, 261,829.08 and 104,847.60 is: 144,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,731.28 : 261,829.08 = 104,847.60 : x
  2. Step 2: Convert to fraction form
    189,731.28/261,829.08 = 104,847.60/x
  3. Step 3: Cross multiply
    189,731.28x = 261,829.08 × 104,847.60
  4. Step 4: Simplify right side
    189,731.28x = 27,452,150,648.21
  5. Step 5: Solve for x
    x = 27,452,150,648.21/189,731.28
  6. Step 6: Final answer
    x = 144,689.64

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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.