Home / 104,491.13-144,250.86-66,289.70

Finding the Fourth Proportional to 104,491.13, 144,250.86 and 66,289.70

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Solution

The fourth proportional to 104,491.13, 144,250.86 and 66,289.70 is: 91,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,491.13 : 144,250.86 = 66,289.70 : x
  2. Step 2: Convert to fraction form
    104,491.13/144,250.86 = 66,289.70/x
  3. Step 3: Cross multiply
    104,491.13x = 144,250.86 × 66,289.70
  4. Step 4: Simplify right side
    104,491.13x = 9,562,345,512.89
  5. Step 5: Solve for x
    x = 9,562,345,512.89/104,491.13
  6. Step 6: Final answer
    x = 91,513.47

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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.