Home / 86,269.40-119,116.66-84,891.58

Finding the Fourth Proportional to 86,269.40, 119,116.66 and 84,891.58

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Solution

The fourth proportional to 86,269.40, 119,116.66 and 84,891.58 is: 117,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,269.40 : 119,116.66 = 84,891.58 : x
  2. Step 2: Convert to fraction form
    86,269.40/119,116.66 = 84,891.58/x
  3. Step 3: Cross multiply
    86,269.40x = 119,116.66 × 84,891.58
  4. Step 4: Simplify right side
    86,269.40x = 10,112,001,471.72
  5. Step 5: Solve for x
    x = 10,112,001,471.72/86,269.40
  6. Step 6: Final answer
    x = 117,214.23

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1.5x scale

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.