Home / 201,903.20-278,622.66-111,267.56

Finding the Fourth Proportional to 201,903.20, 278,622.66 and 111,267.56

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Solution

The fourth proportional to 201,903.20, 278,622.66 and 111,267.56 is: 153,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,903.20 : 278,622.66 = 111,267.56 : x
  2. Step 2: Convert to fraction form
    201,903.20/278,622.66 = 111,267.56/x
  3. Step 3: Cross multiply
    201,903.20x = 278,622.66 × 111,267.56
  4. Step 4: Simplify right side
    201,903.20x = 31,001,663,538.91
  5. Step 5: Solve for x
    x = 31,001,663,538.91/201,903.20
  6. Step 6: Final answer
    x = 153,547.16

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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.