Home / 124,831.38-186,949.84-79,712.98

Finding the Fourth Proportional to 124,831.38, 186,949.84 and 79,712.98

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Solution

The fourth proportional to 124,831.38, 186,949.84 and 79,712.98 is: 119,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,831.38 : 186,949.84 = 79,712.98 : x
  2. Step 2: Convert to fraction form
    124,831.38/186,949.84 = 79,712.98/x
  3. Step 3: Cross multiply
    124,831.38x = 186,949.84 × 79,712.98
  4. Step 4: Simplify right side
    124,831.38x = 14,902,328,380.89
  5. Step 5: Solve for x
    x = 14,902,328,380.89/124,831.38
  6. Step 6: Final answer
    x = 119,379.67

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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.