Home / 150,153.64-207,208.78-82,170.32

Finding the Fourth Proportional to 150,153.64, 207,208.78 and 82,170.32

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Solution

The fourth proportional to 150,153.64, 207,208.78 and 82,170.32 is: 113,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,153.64 : 207,208.78 = 82,170.32 : x
  2. Step 2: Convert to fraction form
    150,153.64/207,208.78 = 82,170.32/x
  3. Step 3: Cross multiply
    150,153.64x = 207,208.78 × 82,170.32
  4. Step 4: Simplify right side
    150,153.64x = 17,026,411,759.41
  5. Step 5: Solve for x
    x = 17,026,411,759.41/150,153.64
  6. Step 6: Final answer
    x = 113,393.27

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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.