Home / 154,356.28-231,533.10-120,650.64

Finding the Fourth Proportional to 154,356.28, 231,533.10 and 120,650.64

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Solution

The fourth proportional to 154,356.28, 231,533.10 and 120,650.64 is: 180,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,356.28 : 231,533.10 = 120,650.64 : x
  2. Step 2: Convert to fraction form
    154,356.28/231,533.10 = 120,650.64/x
  3. Step 3: Cross multiply
    154,356.28x = 231,533.10 × 120,650.64
  4. Step 4: Simplify right side
    154,356.28x = 27,934,616,696.18
  5. Step 5: Solve for x
    x = 27,934,616,696.18/154,356.28
  6. Step 6: Final answer
    x = 180,974.93

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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.