Home / 201,515.16-278,087.10-110,868.86

Finding the Fourth Proportional to 201,515.16, 278,087.10 and 110,868.86

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Solution

The fourth proportional to 201,515.16, 278,087.10 and 110,868.86 is: 152,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,515.16 : 278,087.10 = 110,868.86 : x
  2. Step 2: Convert to fraction form
    201,515.16/278,087.10 = 110,868.86/x
  3. Step 3: Cross multiply
    201,515.16x = 278,087.10 × 110,868.86
  4. Step 4: Simplify right side
    201,515.16x = 30,831,199,757.71
  5. Step 5: Solve for x
    x = 30,831,199,757.71/201,515.16
  6. Step 6: Final answer
    x = 152,996.92

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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.