Home / 149,423.56-206,180.82-83,999.45

Finding the Fourth Proportional to 149,423.56, 206,180.82 and 83,999.45

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Solution

The fourth proportional to 149,423.56, 206,180.82 and 83,999.45 is: 115,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,423.56 : 206,180.82 = 83,999.45 : x
  2. Step 2: Convert to fraction form
    149,423.56/206,180.82 = 83,999.45/x
  3. Step 3: Cross multiply
    149,423.56x = 206,180.82 × 83,999.45
  4. Step 4: Simplify right side
    149,423.56x = 17,319,075,996.00
  5. Step 5: Solve for x
    x = 17,319,075,996.00/149,423.56
  6. Step 6: Final answer
    x = 115,905.93

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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.