Home / 123,342.21-170,211.96-66,753.63

Finding the Fourth Proportional to 123,342.21, 170,211.96 and 66,753.63

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Solution

The fourth proportional to 123,342.21, 170,211.96 and 66,753.63 is: 92,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,342.21 : 170,211.96 = 66,753.63 : x
  2. Step 2: Convert to fraction form
    123,342.21/170,211.96 = 66,753.63/x
  3. Step 3: Cross multiply
    123,342.21x = 170,211.96 × 66,753.63
  4. Step 4: Simplify right side
    123,342.21x = 11,362,266,199.41
  5. Step 5: Solve for x
    x = 11,362,266,199.41/123,342.21
  6. Step 6: Final answer
    x = 92,119.85

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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.