Home / 190,839.92-285,823.88-91,070.18

Finding the Fourth Proportional to 190,839.92, 285,823.88 and 91,070.18

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Solution

The fourth proportional to 190,839.92, 285,823.88 and 91,070.18 is: 136,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,839.92 : 285,823.88 = 91,070.18 : x
  2. Step 2: Convert to fraction form
    190,839.92/285,823.88 = 91,070.18/x
  3. Step 3: Cross multiply
    190,839.92x = 285,823.88 × 91,070.18
  4. Step 4: Simplify right side
    190,839.92x = 26,030,030,315.43
  5. Step 5: Solve for x
    x = 26,030,030,315.43/190,839.92
  6. Step 6: Final answer
    x = 136,397.20

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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.