Home / 123,238.64-170,173.03-77,996.44

Finding the Fourth Proportional to 123,238.64, 170,173.03 and 77,996.44

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Solution

The fourth proportional to 123,238.64, 170,173.03 and 77,996.44 is: 107,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,238.64 : 170,173.03 = 77,996.44 : x
  2. Step 2: Convert to fraction form
    123,238.64/170,173.03 = 77,996.44/x
  3. Step 3: Cross multiply
    123,238.64x = 170,173.03 × 77,996.44
  4. Step 4: Simplify right side
    123,238.64x = 13,272,890,947.23
  5. Step 5: Solve for x
    x = 13,272,890,947.23/123,238.64
  6. Step 6: Final answer
    x = 107,700.73

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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.