Home / 209,815.12-289,541.22-114,322.60

Finding the Fourth Proportional to 209,815.12, 289,541.22 and 114,322.60

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Solution

The fourth proportional to 209,815.12, 289,541.22 and 114,322.60 is: 157,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,815.12 : 289,541.22 = 114,322.60 : x
  2. Step 2: Convert to fraction form
    209,815.12/289,541.22 = 114,322.60/x
  3. Step 3: Cross multiply
    209,815.12x = 289,541.22 × 114,322.60
  4. Step 4: Simplify right side
    209,815.12x = 33,101,105,077.57
  5. Step 5: Solve for x
    x = 33,101,105,077.57/209,815.12
  6. Step 6: Final answer
    x = 157,763.20

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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.