Home / 189,529.98-284,362.65-81,413.94

Finding the Fourth Proportional to 189,529.98, 284,362.65 and 81,413.94

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Solution

The fourth proportional to 189,529.98, 284,362.65 and 81,413.94 is: 122,149.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,529.98 : 284,362.65 = 81,413.94 : x
  2. Step 2: Convert to fraction form
    189,529.98/284,362.65 = 81,413.94/x
  3. Step 3: Cross multiply
    189,529.98x = 284,362.65 × 81,413.94
  4. Step 4: Simplify right side
    189,529.98x = 23,151,083,725.34
  5. Step 5: Solve for x
    x = 23,151,083,725.34/189,529.98
  6. Step 6: Final answer
    x = 122,149.98

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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.