Home / 109,148.79-150,620.31-76,896.35

Finding the Fourth Proportional to 109,148.79, 150,620.31 and 76,896.35

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Solution

The fourth proportional to 109,148.79, 150,620.31 and 76,896.35 is: 106,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,148.79 : 150,620.31 = 76,896.35 : x
  2. Step 2: Convert to fraction form
    109,148.79/150,620.31 = 76,896.35/x
  3. Step 3: Cross multiply
    109,148.79x = 150,620.31 × 76,896.35
  4. Step 4: Simplify right side
    109,148.79x = 11,582,151,321.77
  5. Step 5: Solve for x
    x = 11,582,151,321.77/109,148.79
  6. Step 6: Final answer
    x = 106,113.42

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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.