Home / 86,614.03-119,609.90-81,896.77

Finding the Fourth Proportional to 86,614.03, 119,609.90 and 81,896.77

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Solution

The fourth proportional to 86,614.03, 119,609.90 and 81,896.77 is: 113,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,614.03 : 119,609.90 = 81,896.77 : x
  2. Step 2: Convert to fraction form
    86,614.03/119,609.90 = 81,896.77/x
  3. Step 3: Cross multiply
    86,614.03x = 119,609.90 × 81,896.77
  4. Step 4: Simplify right side
    86,614.03x = 9,795,663,761.51
  5. Step 5: Solve for x
    x = 9,795,663,761.51/86,614.03
  6. Step 6: Final answer
    x = 113,095.58

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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.