Home / 134,238.64-184,976.16-103,839.28

Finding the Fourth Proportional to 134,238.64, 184,976.16 and 103,839.28

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Solution

The fourth proportional to 134,238.64, 184,976.16 and 103,839.28 is: 143,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,238.64 : 184,976.16 = 103,839.28 : x
  2. Step 2: Convert to fraction form
    134,238.64/184,976.16 = 103,839.28/x
  3. Step 3: Cross multiply
    134,238.64x = 184,976.16 × 103,839.28
  4. Step 4: Simplify right side
    134,238.64x = 19,207,791,271.56
  5. Step 5: Solve for x
    x = 19,207,791,271.56/134,238.64
  6. Step 6: Final answer
    x = 143,086.90

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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.