Home / 142,887.21-214,366.40-100,849.32

Finding the Fourth Proportional to 142,887.21, 214,366.40 and 100,849.32

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Solution

The fourth proportional to 142,887.21, 214,366.40 and 100,849.32 is: 151,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,887.21 : 214,366.40 = 100,849.32 : x
  2. Step 2: Convert to fraction form
    142,887.21/214,366.40 = 100,849.32/x
  3. Step 3: Cross multiply
    142,887.21x = 214,366.40 × 100,849.32
  4. Step 4: Simplify right side
    142,887.21x = 21,618,705,544.79
  5. Step 5: Solve for x
    x = 21,618,705,544.79/142,887.21
  6. Step 6: Final answer
    x = 151,299.10

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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.