Home / 144,288.81-216,433.22-39,107.78

Finding the Fourth Proportional to 144,288.81, 216,433.22 and 39,107.78

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Solution

The fourth proportional to 144,288.81, 216,433.22 and 39,107.78 is: 58,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,288.81 : 216,433.22 = 39,107.78 : x
  2. Step 2: Convert to fraction form
    144,288.81/216,433.22 = 39,107.78/x
  3. Step 3: Cross multiply
    144,288.81x = 216,433.22 × 39,107.78
  4. Step 4: Simplify right side
    144,288.81x = 8,464,222,752.45
  5. Step 5: Solve for x
    x = 8,464,222,752.45/144,288.81
  6. Step 6: Final answer
    x = 58,661.67

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1.5x scale

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.