Home / 112,971.63-155,914.16-62,673.87

Finding the Fourth Proportional to 112,971.63, 155,914.16 and 62,673.87

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Solution

The fourth proportional to 112,971.63, 155,914.16 and 62,673.87 is: 86,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,971.63 : 155,914.16 = 62,673.87 : x
  2. Step 2: Convert to fraction form
    112,971.63/155,914.16 = 62,673.87/x
  3. Step 3: Cross multiply
    112,971.63x = 155,914.16 × 62,673.87
  4. Step 4: Simplify right side
    112,971.63x = 9,771,743,481.63
  5. Step 5: Solve for x
    x = 9,771,743,481.63/112,971.63
  6. Step 6: Final answer
    x = 86,497.32

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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.