Home / 201,986.96-278,730.20-115,926.08

Finding the Fourth Proportional to 201,986.96, 278,730.20 and 115,926.08

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Solution

The fourth proportional to 201,986.96, 278,730.20 and 115,926.08 is: 159,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,986.96 : 278,730.20 = 115,926.08 : x
  2. Step 2: Convert to fraction form
    201,986.96/278,730.20 = 115,926.08/x
  3. Step 3: Cross multiply
    201,986.96x = 278,730.20 × 115,926.08
  4. Step 4: Simplify right side
    201,986.96x = 32,312,098,883.99
  5. Step 5: Solve for x
    x = 32,312,098,883.99/201,986.96
  6. Step 6: Final answer
    x = 159,971.21

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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.