Home / 104,301.20-143,936.34-56,555.28

Finding the Fourth Proportional to 104,301.20, 143,936.34 and 56,555.28

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Solution

The fourth proportional to 104,301.20, 143,936.34 and 56,555.28 is: 78,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,301.20 : 143,936.34 = 56,555.28 : x
  2. Step 2: Convert to fraction form
    104,301.20/143,936.34 = 56,555.28/x
  3. Step 3: Cross multiply
    104,301.20x = 143,936.34 × 56,555.28
  4. Step 4: Simplify right side
    104,301.20x = 8,140,360,010.88
  5. Step 5: Solve for x
    x = 8,140,360,010.88/104,301.20
  6. Step 6: Final answer
    x = 78,046.66

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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.