Home / 137,695.30-190,140.68-86,100.82

Finding the Fourth Proportional to 137,695.30, 190,140.68 and 86,100.82

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Solution

The fourth proportional to 137,695.30, 190,140.68 and 86,100.82 is: 118,894.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,695.30 : 190,140.68 = 86,100.82 : x
  2. Step 2: Convert to fraction form
    137,695.30/190,140.68 = 86,100.82/x
  3. Step 3: Cross multiply
    137,695.30x = 190,140.68 × 86,100.82
  4. Step 4: Simplify right side
    137,695.30x = 16,371,268,203.26
  5. Step 5: Solve for x
    x = 16,371,268,203.26/137,695.30
  6. Step 6: Final answer
    x = 118,894.90

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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.