Home / 144,828.63-199,871.73-81,170.53

Finding the Fourth Proportional to 144,828.63, 199,871.73 and 81,170.53

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Solution

The fourth proportional to 144,828.63, 199,871.73 and 81,170.53 is: 112,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,828.63 : 199,871.73 = 81,170.53 : x
  2. Step 2: Convert to fraction form
    144,828.63/199,871.73 = 81,170.53/x
  3. Step 3: Cross multiply
    144,828.63x = 199,871.73 × 81,170.53
  4. Step 4: Simplify right side
    144,828.63x = 16,223,694,090.28
  5. Step 5: Solve for x
    x = 16,223,694,090.28/144,828.63
  6. Step 6: Final answer
    x = 112,019.94

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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.