Home / 134,744.64-185,969.60-81,059.28

Finding the Fourth Proportional to 134,744.64, 185,969.60 and 81,059.28

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Solution

The fourth proportional to 134,744.64, 185,969.60 and 81,059.28 is: 111,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,744.64 : 185,969.60 = 81,059.28 : x
  2. Step 2: Convert to fraction form
    134,744.64/185,969.60 = 81,059.28/x
  3. Step 3: Cross multiply
    134,744.64x = 185,969.60 × 81,059.28
  4. Step 4: Simplify right side
    134,744.64x = 15,074,561,877.89
  5. Step 5: Solve for x
    x = 15,074,561,877.89/134,744.64
  6. Step 6: Final answer
    x = 111,875.04

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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.