Home / 106,436.81-146,879.65-58,690.15

Finding the Fourth Proportional to 106,436.81, 146,879.65 and 58,690.15

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Solution

The fourth proportional to 106,436.81, 146,879.65 and 58,690.15 is: 80,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,436.81 : 146,879.65 = 58,690.15 : x
  2. Step 2: Convert to fraction form
    106,436.81/146,879.65 = 58,690.15/x
  3. Step 3: Cross multiply
    106,436.81x = 146,879.65 × 58,690.15
  4. Step 4: Simplify right side
    106,436.81x = 8,620,388,690.45
  5. Step 5: Solve for x
    x = 8,620,388,690.45/106,436.81
  6. Step 6: Final answer
    x = 80,990.67

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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.