Home / 190,445.40-285,107.33-140,747.04

Finding the Fourth Proportional to 190,445.40, 285,107.33 and 140,747.04

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Solution

The fourth proportional to 190,445.40, 285,107.33 and 140,747.04 is: 210,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,445.40 : 285,107.33 = 140,747.04 : x
  2. Step 2: Convert to fraction form
    190,445.40/285,107.33 = 140,747.04/x
  3. Step 3: Cross multiply
    190,445.40x = 285,107.33 × 140,747.04
  4. Step 4: Simplify right side
    190,445.40x = 40,128,012,076.07
  5. Step 5: Solve for x
    x = 40,128,012,076.07/190,445.40
  6. Step 6: Final answer
    x = 210,706.12

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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.