Home / 134,866.64-185,970.12-91,874

Finding the Fourth Proportional to 134,866.64, 185,970.12 and 91,874

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Solution

The fourth proportional to 134,866.64, 185,970.12 and 91,874 is: 126,686.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,866.64 : 185,970.12 = 91,874 : x
  2. Step 2: Convert to fraction form
    134,866.64/185,970.12 = 91,874/x
  3. Step 3: Cross multiply
    134,866.64x = 185,970.12 × 91,874
  4. Step 4: Simplify right side
    134,866.64x = 17,085,818,804.88
  5. Step 5: Solve for x
    x = 17,085,818,804.88/134,866.64
  6. Step 6: Final answer
    x = 126,686.77

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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.