Home / 147,657.21-203,748.66-83,118.57

Finding the Fourth Proportional to 147,657.21, 203,748.66 and 83,118.57

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Solution

The fourth proportional to 147,657.21, 203,748.66 and 83,118.57 is: 114,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,657.21 : 203,748.66 = 83,118.57 : x
  2. Step 2: Convert to fraction form
    147,657.21/203,748.66 = 83,118.57/x
  3. Step 3: Cross multiply
    147,657.21x = 203,748.66 × 83,118.57
  4. Step 4: Simplify right side
    147,657.21x = 16,935,297,258.62
  5. Step 5: Solve for x
    x = 16,935,297,258.62/147,657.21
  6. Step 6: Final answer
    x = 114,693.33

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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.