Home / 127,140.53-190,710.79-99,081.57

Finding the Fourth Proportional to 127,140.53, 190,710.79 and 99,081.57

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Solution

The fourth proportional to 127,140.53, 190,710.79 and 99,081.57 is: 148,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.53 : 190,710.79 = 99,081.57 : x
  2. Step 2: Convert to fraction form
    127,140.53/190,710.79 = 99,081.57/x
  3. Step 3: Cross multiply
    127,140.53x = 190,710.79 × 99,081.57
  4. Step 4: Simplify right side
    127,140.53x = 18,895,924,413.24
  5. Step 5: Solve for x
    x = 18,895,924,413.24/127,140.53
  6. Step 6: Final answer
    x = 148,622.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.