Home / 201,922.68-278,655.23-111,281.97

Finding the Fourth Proportional to 201,922.68, 278,655.23 and 111,281.97

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Solution

The fourth proportional to 201,922.68, 278,655.23 and 111,281.97 is: 153,570.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,922.68 : 278,655.23 = 111,281.97 : x
  2. Step 2: Convert to fraction form
    201,922.68/278,655.23 = 111,281.97/x
  3. Step 3: Cross multiply
    201,922.68x = 278,655.23 × 111,281.97
  4. Step 4: Simplify right side
    201,922.68x = 31,009,302,945.20
  5. Step 5: Solve for x
    x = 31,009,302,945.20/201,922.68
  6. Step 6: Final answer
    x = 153,570.18

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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.