Home / 144,883.37-199,938.93-81,221.17

Finding the Fourth Proportional to 144,883.37, 199,938.93 and 81,221.17

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Solution

The fourth proportional to 144,883.37, 199,938.93 and 81,221.17 is: 112,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,883.37 : 199,938.93 = 81,221.17 : x
  2. Step 2: Convert to fraction form
    144,883.37/199,938.93 = 81,221.17/x
  3. Step 3: Cross multiply
    144,883.37x = 199,938.93 × 81,221.17
  4. Step 4: Simplify right side
    144,883.37x = 16,239,273,823.15
  5. Step 5: Solve for x
    x = 16,239,273,823.15/144,883.37
  6. Step 6: Final answer
    x = 112,085.15

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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.