Home / 186,868.16-280,374.60-68,621.12

Finding the Fourth Proportional to 186,868.16, 280,374.60 and 68,621.12

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Solution

The fourth proportional to 186,868.16, 280,374.60 and 68,621.12 is: 102,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,868.16 : 280,374.60 = 68,621.12 : x
  2. Step 2: Convert to fraction form
    186,868.16/280,374.60 = 68,621.12/x
  3. Step 3: Cross multiply
    186,868.16x = 280,374.60 × 68,621.12
  4. Step 4: Simplify right side
    186,868.16x = 19,239,619,071.55
  5. Step 5: Solve for x
    x = 19,239,619,071.55/186,868.16
  6. Step 6: Final answer
    x = 102,958.25

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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.