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Finding the Fourth Proportional to 123,216.26, 170,038.45 and 66,627.63

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Solution

The fourth proportional to 123,216.26, 170,038.45 and 66,627.63 is: 91,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,216.26 : 170,038.45 = 66,627.63 : x
  2. Step 2: Convert to fraction form
    123,216.26/170,038.45 = 66,627.63/x
  3. Step 3: Cross multiply
    123,216.26x = 170,038.45 × 66,627.63
  4. Step 4: Simplify right side
    123,216.26x = 11,329,258,932.37
  5. Step 5: Solve for x
    x = 11,329,258,932.37/123,216.26
  6. Step 6: Final answer
    x = 91,946.14

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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.