Home / 201,775.34-278,462.60-111,131.28

Finding the Fourth Proportional to 201,775.34, 278,462.60 and 111,131.28

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Solution

The fourth proportional to 201,775.34, 278,462.60 and 111,131.28 is: 153,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,775.34 : 278,462.60 = 111,131.28 : x
  2. Step 2: Convert to fraction form
    201,775.34/278,462.60 = 111,131.28/x
  3. Step 3: Cross multiply
    201,775.34x = 278,462.60 × 111,131.28
  4. Step 4: Simplify right side
    201,775.34x = 30,945,905,170.13
  5. Step 5: Solve for x
    x = 30,945,905,170.13/201,775.34
  6. Step 6: Final answer
    x = 153,368.12

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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.