Home / 209,915.46-289,683.32-114,422.81

Finding the Fourth Proportional to 209,915.46, 289,683.32 and 114,422.81

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Solution

The fourth proportional to 209,915.46, 289,683.32 and 114,422.81 is: 157,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,915.46 : 289,683.32 = 114,422.81 : x
  2. Step 2: Convert to fraction form
    209,915.46/289,683.32 = 114,422.81/x
  3. Step 3: Cross multiply
    209,915.46x = 289,683.32 × 114,422.81
  4. Step 4: Simplify right side
    209,915.46x = 33,146,377,464.00
  5. Step 5: Solve for x
    x = 33,146,377,464.00/209,915.46
  6. Step 6: Final answer
    x = 157,903.46

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1.5x scale

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.