Home / 98,673.12-148,074.48-72,297.36

Finding the Fourth Proportional to 98,673.12, 148,074.48 and 72,297.36

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Solution

The fourth proportional to 98,673.12, 148,074.48 and 72,297.36 is: 108,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,673.12 : 148,074.48 = 72,297.36 : x
  2. Step 2: Convert to fraction form
    98,673.12/148,074.48 = 72,297.36/x
  3. Step 3: Cross multiply
    98,673.12x = 148,074.48 × 72,297.36
  4. Step 4: Simplify right side
    98,673.12x = 10,705,393,987.37
  5. Step 5: Solve for x
    x = 10,705,393,987.37/98,673.12
  6. Step 6: Final answer
    x = 108,493.52

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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.