Home / 209,918.20-314,787.30-97,586.68

Finding the Fourth Proportional to 209,918.20, 314,787.30 and 97,586.68

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Solution

The fourth proportional to 209,918.20, 314,787.30 and 97,586.68 is: 146,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,918.20 : 314,787.30 = 97,586.68 : x
  2. Step 2: Convert to fraction form
    209,918.20/314,787.30 = 97,586.68/x
  3. Step 3: Cross multiply
    209,918.20x = 314,787.30 × 97,586.68
  4. Step 4: Simplify right side
    209,918.20x = 30,719,047,513.16
  5. Step 5: Solve for x
    x = 30,719,047,513.16/209,918.20
  6. Step 6: Final answer
    x = 146,338.18

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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.