Home / 123,471.44-170,356.03-77,536.04

Finding the Fourth Proportional to 123,471.44, 170,356.03 and 77,536.04

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Solution

The fourth proportional to 123,471.44, 170,356.03 and 77,536.04 is: 106,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,471.44 : 170,356.03 = 77,536.04 : x
  2. Step 2: Convert to fraction form
    123,471.44/170,356.03 = 77,536.04/x
  3. Step 3: Cross multiply
    123,471.44x = 170,356.03 × 77,536.04
  4. Step 4: Simplify right side
    123,471.44x = 13,208,731,868.95
  5. Step 5: Solve for x
    x = 13,208,731,868.95/123,471.44
  6. Step 6: Final answer
    x = 106,978.03

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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.