Home / 190,569.60-263,002.20-105,714

Finding the Fourth Proportional to 190,569.60, 263,002.20 and 105,714

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Solution

The fourth proportional to 190,569.60, 263,002.20 and 105,714 is: 145,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,569.60 : 263,002.20 = 105,714 : x
  2. Step 2: Convert to fraction form
    190,569.60/263,002.20 = 105,714/x
  3. Step 3: Cross multiply
    190,569.60x = 263,002.20 × 105,714
  4. Step 4: Simplify right side
    190,569.60x = 27,803,014,570.80
  5. Step 5: Solve for x
    x = 27,803,014,570.80/190,569.60
  6. Step 6: Final answer
    x = 145,894.28

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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.