Home / 142,356.80-213,074.40-131,297.60

Finding the Fourth Proportional to 142,356.80, 213,074.40 and 131,297.60

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Solution

The fourth proportional to 142,356.80, 213,074.40 and 131,297.60 is: 196,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,356.80 : 213,074.40 = 131,297.60 : x
  2. Step 2: Convert to fraction form
    142,356.80/213,074.40 = 131,297.60/x
  3. Step 3: Cross multiply
    142,356.80x = 213,074.40 × 131,297.60
  4. Step 4: Simplify right side
    142,356.80x = 27,976,157,341.44
  5. Step 5: Solve for x
    x = 27,976,157,341.44/142,356.80
  6. Step 6: Final answer
    x = 196,521.40

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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.