Home / 123,475.05-170,396.37-66,886.38

Finding the Fourth Proportional to 123,475.05, 170,396.37 and 66,886.38

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Solution

The fourth proportional to 123,475.05, 170,396.37 and 66,886.38 is: 92,303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,475.05 : 170,396.37 = 66,886.38 : x
  2. Step 2: Convert to fraction form
    123,475.05/170,396.37 = 66,886.38/x
  3. Step 3: Cross multiply
    123,475.05x = 170,396.37 × 66,886.38
  4. Step 4: Simplify right side
    123,475.05x = 11,397,196,354.44
  5. Step 5: Solve for x
    x = 11,397,196,354.44/123,475.05
  6. Step 6: Final answer
    x = 92,303.64

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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.