Home / 123,836.32-170,894.79-70,131.79

Finding the Fourth Proportional to 123,836.32, 170,894.79 and 70,131.79

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Solution

The fourth proportional to 123,836.32, 170,894.79 and 70,131.79 is: 96,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,836.32 : 170,894.79 = 70,131.79 : x
  2. Step 2: Convert to fraction form
    123,836.32/170,894.79 = 70,131.79/x
  3. Step 3: Cross multiply
    123,836.32x = 170,894.79 × 70,131.79
  4. Step 4: Simplify right side
    123,836.32x = 11,985,157,524.37
  5. Step 5: Solve for x
    x = 11,985,157,524.37/123,836.32
  6. Step 6: Final answer
    x = 96,782.25

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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.