Home / 143,865.03-198,618.90-127,905.33

Finding the Fourth Proportional to 143,865.03, 198,618.90 and 127,905.33

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Solution

The fourth proportional to 143,865.03, 198,618.90 and 127,905.33 is: 176,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,865.03 : 198,618.90 = 127,905.33 : x
  2. Step 2: Convert to fraction form
    143,865.03/198,618.90 = 127,905.33/x
  3. Step 3: Cross multiply
    143,865.03x = 198,618.90 × 127,905.33
  4. Step 4: Simplify right side
    143,865.03x = 25,404,415,948.74
  5. Step 5: Solve for x
    x = 25,404,415,948.74/143,865.03
  6. Step 6: Final answer
    x = 176,585.07

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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.