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Finding the Fourth Proportional to 143,603.58, 215,413.47 and 43,767.03

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Solution

The fourth proportional to 143,603.58, 215,413.47 and 43,767.03 is: 65,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,603.58 : 215,413.47 = 43,767.03 : x
  2. Step 2: Convert to fraction form
    143,603.58/215,413.47 = 43,767.03/x
  3. Step 3: Cross multiply
    143,603.58x = 215,413.47 × 43,767.03
  4. Step 4: Simplify right side
    143,603.58x = 9,428,007,803.89
  5. Step 5: Solve for x
    x = 9,428,007,803.89/143,603.58
  6. Step 6: Final answer
    x = 65,653.01

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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.