Home / 190,841.92-285,826.88-91,072.18

Finding the Fourth Proportional to 190,841.92, 285,826.88 and 91,072.18

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Solution

The fourth proportional to 190,841.92, 285,826.88 and 91,072.18 is: 136,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,841.92 : 285,826.88 = 91,072.18 : x
  2. Step 2: Convert to fraction form
    190,841.92/285,826.88 = 91,072.18/x
  3. Step 3: Cross multiply
    190,841.92x = 285,826.88 × 91,072.18
  4. Step 4: Simplify right side
    190,841.92x = 26,030,877,064.20
  5. Step 5: Solve for x
    x = 26,030,877,064.20/190,841.92
  6. Step 6: Final answer
    x = 136,400.21

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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.