Home / 140,485.40-193,853.94-83,126.48

Finding the Fourth Proportional to 140,485.40, 193,853.94 and 83,126.48

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Solution

The fourth proportional to 140,485.40, 193,853.94 and 83,126.48 is: 114,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,485.40 : 193,853.94 = 83,126.48 : x
  2. Step 2: Convert to fraction form
    140,485.40/193,853.94 = 83,126.48/x
  3. Step 3: Cross multiply
    140,485.40x = 193,853.94 × 83,126.48
  4. Step 4: Simplify right side
    140,485.40x = 16,114,395,666.33
  5. Step 5: Solve for x
    x = 16,114,395,666.33/140,485.40
  6. Step 6: Final answer
    x = 114,705.13

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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.