Home / 124,942.16-187,413.10-40,702.20

Finding the Fourth Proportional to 124,942.16, 187,413.10 and 40,702.20

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Solution

The fourth proportional to 124,942.16, 187,413.10 and 40,702.20 is: 61,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,942.16 : 187,413.10 = 40,702.20 : x
  2. Step 2: Convert to fraction form
    124,942.16/187,413.10 = 40,702.20/x
  3. Step 3: Cross multiply
    124,942.16x = 187,413.10 × 40,702.20
  4. Step 4: Simplify right side
    124,942.16x = 7,628,124,541.75
  5. Step 5: Solve for x
    x = 7,628,124,541.75/124,942.16
  6. Step 6: Final answer
    x = 61,053.25

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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.