Home / 123,886.32-170,964.96-70,170

Finding the Fourth Proportional to 123,886.32, 170,964.96 and 70,170

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Solution

The fourth proportional to 123,886.32, 170,964.96 and 70,170 is: 96,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,886.32 : 170,964.96 = 70,170 : x
  2. Step 2: Convert to fraction form
    123,886.32/170,964.96 = 70,170/x
  3. Step 3: Cross multiply
    123,886.32x = 170,964.96 × 70,170
  4. Step 4: Simplify right side
    123,886.32x = 11,996,611,243.20
  5. Step 5: Solve for x
    x = 11,996,611,243.20/123,886.32
  6. Step 6: Final answer
    x = 96,835.64

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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.