Home / 109,391.47-164,085.57-66,709.44

Finding the Fourth Proportional to 109,391.47, 164,085.57 and 66,709.44

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Solution

The fourth proportional to 109,391.47, 164,085.57 and 66,709.44 is: 100,063.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,391.47 : 164,085.57 = 66,709.44 : x
  2. Step 2: Convert to fraction form
    109,391.47/164,085.57 = 66,709.44/x
  3. Step 3: Cross multiply
    109,391.47x = 164,085.57 × 66,709.44
  4. Step 4: Simplify right side
    109,391.47x = 10,946,056,486.78
  5. Step 5: Solve for x
    x = 10,946,056,486.78/109,391.47
  6. Step 6: Final answer
    x = 100,063.16

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1.5x scale

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.