Home / 138,173.04-190,693.56-84,489.52

Finding the Fourth Proportional to 138,173.04, 190,693.56 and 84,489.52

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Solution

The fourth proportional to 138,173.04, 190,693.56 and 84,489.52 is: 116,604.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,173.04 : 190,693.56 = 84,489.52 : x
  2. Step 2: Convert to fraction form
    138,173.04/190,693.56 = 84,489.52/x
  3. Step 3: Cross multiply
    138,173.04x = 190,693.56 × 84,489.52
  4. Step 4: Simplify right side
    138,173.04x = 16,111,607,351.49
  5. Step 5: Solve for x
    x = 16,111,607,351.49/138,173.04
  6. Step 6: Final answer
    x = 116,604.57

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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.