Home / 105,983.36-146,256-58,235.68

Finding the Fourth Proportional to 105,983.36, 146,256 and 58,235.68

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Solution

The fourth proportional to 105,983.36, 146,256 and 58,235.68 is: 80,364.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,983.36 : 146,256 = 58,235.68 : x
  2. Step 2: Convert to fraction form
    105,983.36/146,256 = 58,235.68/x
  3. Step 3: Cross multiply
    105,983.36x = 146,256 × 58,235.68
  4. Step 4: Simplify right side
    105,983.36x = 8,517,317,614.08
  5. Step 5: Solve for x
    x = 8,517,317,614.08/105,983.36
  6. Step 6: Final answer
    x = 80,364.67

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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.