Home / 86,136.03-118,904.18-80,755.47

Finding the Fourth Proportional to 86,136.03, 118,904.18 and 80,755.47

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Solution

The fourth proportional to 86,136.03, 118,904.18 and 80,755.47 is: 111,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,136.03 : 118,904.18 = 80,755.47 : x
  2. Step 2: Convert to fraction form
    86,136.03/118,904.18 = 80,755.47/x
  3. Step 3: Cross multiply
    86,136.03x = 118,904.18 × 80,755.47
  4. Step 4: Simplify right side
    86,136.03x = 9,602,162,537.09
  5. Step 5: Solve for x
    x = 9,602,162,537.09/86,136.03
  6. Step 6: Final answer
    x = 111,476.73

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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.