Home / 134,138.22-201,142.44-77,994.60

Finding the Fourth Proportional to 134,138.22, 201,142.44 and 77,994.60

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Solution

The fourth proportional to 134,138.22, 201,142.44 and 77,994.60 is: 116,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,138.22 : 201,142.44 = 77,994.60 : x
  2. Step 2: Convert to fraction form
    134,138.22/201,142.44 = 77,994.60/x
  3. Step 3: Cross multiply
    134,138.22x = 201,142.44 × 77,994.60
  4. Step 4: Simplify right side
    134,138.22x = 15,688,024,150.82
  5. Step 5: Solve for x
    x = 15,688,024,150.82/134,138.22
  6. Step 6: Final answer
    x = 116,954.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.