Home / 154,913.31-213,382.08-109,513.22

Finding the Fourth Proportional to 154,913.31, 213,382.08 and 109,513.22

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Solution

The fourth proportional to 154,913.31, 213,382.08 and 109,513.22 is: 150,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,913.31 : 213,382.08 = 109,513.22 : x
  2. Step 2: Convert to fraction form
    154,913.31/213,382.08 = 109,513.22/x
  3. Step 3: Cross multiply
    154,913.31x = 213,382.08 × 109,513.22
  4. Step 4: Simplify right side
    154,913.31x = 23,368,157,604.19
  5. Step 5: Solve for x
    x = 23,368,157,604.19/154,913.31
  6. Step 6: Final answer
    x = 150,846.67

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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.