Home / 140,702.31-194,188.53-86,287.01

Finding the Fourth Proportional to 140,702.31, 194,188.53 and 86,287.01

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Solution

The fourth proportional to 140,702.31, 194,188.53 and 86,287.01 is: 119,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,702.31 : 194,188.53 = 86,287.01 : x
  2. Step 2: Convert to fraction form
    140,702.31/194,188.53 = 86,287.01/x
  3. Step 3: Cross multiply
    140,702.31x = 194,188.53 × 86,287.01
  4. Step 4: Simplify right side
    140,702.31x = 16,755,946,659.05
  5. Step 5: Solve for x
    x = 16,755,946,659.05/140,702.31
  6. Step 6: Final answer
    x = 119,087.93

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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.