Home / 144,883.38-199,938.93-81,221.18

Finding the Fourth Proportional to 144,883.38, 199,938.93 and 81,221.18

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Solution

The fourth proportional to 144,883.38, 199,938.93 and 81,221.18 is: 112,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,883.38 : 199,938.93 = 81,221.18 : x
  2. Step 2: Convert to fraction form
    144,883.38/199,938.93 = 81,221.18/x
  3. Step 3: Cross multiply
    144,883.38x = 199,938.93 × 81,221.18
  4. Step 4: Simplify right side
    144,883.38x = 16,239,274,822.84
  5. Step 5: Solve for x
    x = 16,239,274,822.84/144,883.38
  6. Step 6: Final answer
    x = 112,085.15

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1.5x scale

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.