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Finding the Fourth Proportional to 136,201.66, 187,960.82 and 75,777.93

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Solution

The fourth proportional to 136,201.66, 187,960.82 and 75,777.93 is: 104,574.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,201.66 : 187,960.82 = 75,777.93 : x
  2. Step 2: Convert to fraction form
    136,201.66/187,960.82 = 75,777.93/x
  3. Step 3: Cross multiply
    136,201.66x = 187,960.82 × 75,777.93
  4. Step 4: Simplify right side
    136,201.66x = 14,243,281,413.55
  5. Step 5: Solve for x
    x = 14,243,281,413.55/136,201.66
  6. Step 6: Final answer
    x = 104,574.94

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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.