Home / 123,167.70-169,971.32-66,579.08

Finding the Fourth Proportional to 123,167.70, 169,971.32 and 66,579.08

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Solution

The fourth proportional to 123,167.70, 169,971.32 and 66,579.08 is: 91,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,167.70 : 169,971.32 = 66,579.08 : x
  2. Step 2: Convert to fraction form
    123,167.70/169,971.32 = 66,579.08/x
  3. Step 3: Cross multiply
    123,167.70x = 169,971.32 × 66,579.08
  4. Step 4: Simplify right side
    123,167.70x = 11,316,532,929.23
  5. Step 5: Solve for x
    x = 11,316,532,929.23/123,167.70
  6. Step 6: Final answer
    x = 91,879.06

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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.