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Finding the Fourth Proportional to 152,473.75, 210,413.79 and 92,857.75

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Solution

The fourth proportional to 152,473.75, 210,413.79 and 92,857.75 is: 128,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,473.75 : 210,413.79 = 92,857.75 : x
  2. Step 2: Convert to fraction form
    152,473.75/210,413.79 = 92,857.75/x
  3. Step 3: Cross multiply
    152,473.75x = 210,413.79 × 92,857.75
  4. Step 4: Simplify right side
    152,473.75x = 19,538,551,108.37
  5. Step 5: Solve for x
    x = 19,538,551,108.37/152,473.75
  6. Step 6: Final answer
    x = 128,143.70

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1.5x scale

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.