Home / 123,495.09-170,422.16-66,906.33

Finding the Fourth Proportional to 123,495.09, 170,422.16 and 66,906.33

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Solution

The fourth proportional to 123,495.09, 170,422.16 and 66,906.33 is: 92,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,495.09 : 170,422.16 = 66,906.33 : x
  2. Step 2: Convert to fraction form
    123,495.09/170,422.16 = 66,906.33/x
  3. Step 3: Cross multiply
    123,495.09x = 170,422.16 × 66,906.33
  4. Step 4: Simplify right side
    123,495.09x = 11,402,320,941.74
  5. Step 5: Solve for x
    x = 11,402,320,941.74/123,495.09
  6. Step 6: Final answer
    x = 92,330.16

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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.