Home / 116,855.74-161,225.07-71,486.42

Finding the Fourth Proportional to 116,855.74, 161,225.07 and 71,486.42

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Solution

The fourth proportional to 116,855.74, 161,225.07 and 71,486.42 is: 98,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,855.74 : 161,225.07 = 71,486.42 : x
  2. Step 2: Convert to fraction form
    116,855.74/161,225.07 = 71,486.42/x
  3. Step 3: Cross multiply
    116,855.74x = 161,225.07 × 71,486.42
  4. Step 4: Simplify right side
    116,855.74x = 11,525,403,656.27
  5. Step 5: Solve for x
    x = 11,525,403,656.27/116,855.74
  6. Step 6: Final answer
    x = 98,629.33

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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.