Home / 139,885.25-193,043.05-76,224.11

Finding the Fourth Proportional to 139,885.25, 193,043.05 and 76,224.11

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Solution

The fourth proportional to 139,885.25, 193,043.05 and 76,224.11 is: 105,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,885.25 : 193,043.05 = 76,224.11 : x
  2. Step 2: Convert to fraction form
    139,885.25/193,043.05 = 76,224.11/x
  3. Step 3: Cross multiply
    139,885.25x = 193,043.05 × 76,224.11
  4. Step 4: Simplify right side
    139,885.25x = 14,714,533,522.16
  5. Step 5: Solve for x
    x = 14,714,533,522.16/139,885.25
  6. Step 6: Final answer
    x = 105,190.03

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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.