Home / 142,698.08-196,872.75-85,297.52

Finding the Fourth Proportional to 142,698.08, 196,872.75 and 85,297.52

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Solution

The fourth proportional to 142,698.08, 196,872.75 and 85,297.52 is: 117,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,698.08 : 196,872.75 = 85,297.52 : x
  2. Step 2: Convert to fraction form
    142,698.08/196,872.75 = 85,297.52/x
  3. Step 3: Cross multiply
    142,698.08x = 196,872.75 × 85,297.52
  4. Step 4: Simplify right side
    142,698.08x = 16,792,757,822.76
  5. Step 5: Solve for x
    x = 16,792,757,822.76/142,698.08
  6. Step 6: Final answer
    x = 117,680.33

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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.