Home / 109,107.70-150,533.61-66,073.46

Finding the Fourth Proportional to 109,107.70, 150,533.61 and 66,073.46

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Solution

The fourth proportional to 109,107.70, 150,533.61 and 66,073.46 is: 91,160.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,107.70 : 150,533.61 = 66,073.46 : x
  2. Step 2: Convert to fraction form
    109,107.70/150,533.61 = 66,073.46/x
  3. Step 3: Cross multiply
    109,107.70x = 150,533.61 × 66,073.46
  4. Step 4: Simplify right side
    109,107.70x = 9,946,276,458.99
  5. Step 5: Solve for x
    x = 9,946,276,458.99/109,107.70
  6. Step 6: Final answer
    x = 91,160.17

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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.