Home / 116,715.32-161,019.44-86,161.56

Finding the Fourth Proportional to 116,715.32, 161,019.44 and 86,161.56

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Solution

The fourth proportional to 116,715.32, 161,019.44 and 86,161.56 is: 118,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,715.32 : 161,019.44 = 86,161.56 : x
  2. Step 2: Convert to fraction form
    116,715.32/161,019.44 = 86,161.56/x
  3. Step 3: Cross multiply
    116,715.32x = 161,019.44 × 86,161.56
  4. Step 4: Simplify right side
    116,715.32x = 13,873,686,140.73
  5. Step 5: Solve for x
    x = 13,873,686,140.73/116,715.32
  6. Step 6: Final answer
    x = 118,867.74

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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.