Home / 123,343.19-170,213.60-66,754.56

Finding the Fourth Proportional to 123,343.19, 170,213.60 and 66,754.56

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Solution

The fourth proportional to 123,343.19, 170,213.60 and 66,754.56 is: 92,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.19 : 170,213.60 = 66,754.56 : x
  2. Step 2: Convert to fraction form
    123,343.19/170,213.60 = 66,754.56/x
  3. Step 3: Cross multiply
    123,343.19x = 170,213.60 × 66,754.56
  4. Step 4: Simplify right side
    123,343.19x = 11,362,534,779.20
  5. Step 5: Solve for x
    x = 11,362,534,779.20/123,343.19
  6. Step 6: Final answer
    x = 92,121.30

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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.