Home / 134,829.64-186,027.78-81,107.20

Finding the Fourth Proportional to 134,829.64, 186,027.78 and 81,107.20

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Solution

The fourth proportional to 134,829.64, 186,027.78 and 81,107.20 is: 111,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,829.64 : 186,027.78 = 81,107.20 : x
  2. Step 2: Convert to fraction form
    134,829.64/186,027.78 = 81,107.20/x
  3. Step 3: Cross multiply
    134,829.64x = 186,027.78 × 81,107.20
  4. Step 4: Simplify right side
    134,829.64x = 15,088,192,358.02
  5. Step 5: Solve for x
    x = 15,088,192,358.02/134,829.64
  6. Step 6: Final answer
    x = 111,905.60

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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.