Home / 86,269.40-119,116.64-84,891.60

Finding the Fourth Proportional to 86,269.40, 119,116.64 and 84,891.60

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Solution

The fourth proportional to 86,269.40, 119,116.64 and 84,891.60 is: 117,214.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,269.40 : 119,116.64 = 84,891.60 : x
  2. Step 2: Convert to fraction form
    86,269.40/119,116.64 = 84,891.60/x
  3. Step 3: Cross multiply
    86,269.40x = 119,116.64 × 84,891.60
  4. Step 4: Simplify right side
    86,269.40x = 10,112,002,156.22
  5. Step 5: Solve for x
    x = 10,112,002,156.22/86,269.40
  6. Step 6: Final answer
    x = 117,214.24

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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.