Home / 143,716.82-198,329.57-86,357.10

Finding the Fourth Proportional to 143,716.82, 198,329.57 and 86,357.10

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Solution

The fourth proportional to 143,716.82, 198,329.57 and 86,357.10 is: 119,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,716.82 : 198,329.57 = 86,357.10 : x
  2. Step 2: Convert to fraction form
    143,716.82/198,329.57 = 86,357.10/x
  3. Step 3: Cross multiply
    143,716.82x = 198,329.57 × 86,357.10
  4. Step 4: Simplify right side
    143,716.82x = 17,127,166,077.66
  5. Step 5: Solve for x
    x = 17,127,166,077.66/143,716.82
  6. Step 6: Final answer
    x = 119,173.01

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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.