Home / 120,316.43-166,034.65-66,600.29

Finding the Fourth Proportional to 120,316.43, 166,034.65 and 66,600.29

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Solution

The fourth proportional to 120,316.43, 166,034.65 and 66,600.29 is: 91,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,316.43 : 166,034.65 = 66,600.29 : x
  2. Step 2: Convert to fraction form
    120,316.43/166,034.65 = 66,600.29/x
  3. Step 3: Cross multiply
    120,316.43x = 166,034.65 × 66,600.29
  4. Step 4: Simplify right side
    120,316.43x = 11,057,955,840.05
  5. Step 5: Solve for x
    x = 11,057,955,840.05/120,316.43
  6. Step 6: Final answer
    x = 91,907.28

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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.