Home / 201,975.86-278,742.75-111,348.02

Finding the Fourth Proportional to 201,975.86, 278,742.75 and 111,348.02

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Solution

The fourth proportional to 201,975.86, 278,742.75 and 111,348.02 is: 153,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,975.86 : 278,742.75 = 111,348.02 : x
  2. Step 2: Convert to fraction form
    201,975.86/278,742.75 = 111,348.02/x
  3. Step 3: Cross multiply
    201,975.86x = 278,742.75 × 111,348.02
  4. Step 4: Simplify right side
    201,975.86x = 31,037,453,301.86
  5. Step 5: Solve for x
    x = 31,037,453,301.86/201,975.86
  6. Step 6: Final answer
    x = 153,669.12

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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.