Home / 140,475.40-193,840.14-83,116.48

Finding the Fourth Proportional to 140,475.40, 193,840.14 and 83,116.48

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Solution

The fourth proportional to 140,475.40, 193,840.14 and 83,116.48 is: 114,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,475.40 : 193,840.14 = 83,116.48 : x
  2. Step 2: Convert to fraction form
    140,475.40/193,840.14 = 83,116.48/x
  3. Step 3: Cross multiply
    140,475.40x = 193,840.14 × 83,116.48
  4. Step 4: Simplify right side
    140,475.40x = 16,111,310,119.51
  5. Step 5: Solve for x
    x = 16,111,310,119.51/140,475.40
  6. Step 6: Final answer
    x = 114,691.33

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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.