Home / 136,018.42-187,722.93-76,413.94

Finding the Fourth Proportional to 136,018.42, 187,722.93 and 76,413.94

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Solution

The fourth proportional to 136,018.42, 187,722.93 and 76,413.94 is: 105,461.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,018.42 : 187,722.93 = 76,413.94 : x
  2. Step 2: Convert to fraction form
    136,018.42/187,722.93 = 76,413.94/x
  3. Step 3: Cross multiply
    136,018.42x = 187,722.93 × 76,413.94
  4. Step 4: Simplify right side
    136,018.42x = 14,344,648,709.64
  5. Step 5: Solve for x
    x = 14,344,648,709.64/136,018.42
  6. Step 6: Final answer
    x = 105,461.07

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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.