Home / 190,841.30-285,825.94-91,071.55

Finding the Fourth Proportional to 190,841.30, 285,825.94 and 91,071.55

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Solution

The fourth proportional to 190,841.30, 285,825.94 and 91,071.55 is: 136,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,841.30 : 285,825.94 = 91,071.55 : x
  2. Step 2: Convert to fraction form
    190,841.30/285,825.94 = 91,071.55/x
  3. Step 3: Cross multiply
    190,841.30x = 285,825.94 × 91,071.55
  4. Step 4: Simplify right side
    190,841.30x = 26,030,611,386.01
  5. Step 5: Solve for x
    x = 26,030,611,386.01/190,841.30
  6. Step 6: Final answer
    x = 136,399.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.