Home / 201,910.02-278,637.66-111,269.23

Finding the Fourth Proportional to 201,910.02, 278,637.66 and 111,269.23

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Solution

The fourth proportional to 201,910.02, 278,637.66 and 111,269.23 is: 153,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,910.02 : 278,637.66 = 111,269.23 : x
  2. Step 2: Convert to fraction form
    201,910.02/278,637.66 = 111,269.23/x
  3. Step 3: Cross multiply
    201,910.02x = 278,637.66 × 111,269.23
  4. Step 4: Simplify right side
    201,910.02x = 31,003,797,877.20
  5. Step 5: Solve for x
    x = 31,003,797,877.20/201,910.02
  6. Step 6: Final answer
    x = 153,552.55

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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.