Home / 104,515.20-144,230.40-56,768.16

Finding the Fourth Proportional to 104,515.20, 144,230.40 and 56,768.16

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Solution

The fourth proportional to 104,515.20, 144,230.40 and 56,768.16 is: 78,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,515.20 : 144,230.40 = 56,768.16 : x
  2. Step 2: Convert to fraction form
    104,515.20/144,230.40 = 56,768.16/x
  3. Step 3: Cross multiply
    104,515.20x = 144,230.40 × 56,768.16
  4. Step 4: Simplify right side
    104,515.20x = 8,187,694,424.06
  5. Step 5: Solve for x
    x = 8,187,694,424.06/104,515.20
  6. Step 6: Final answer
    x = 78,339.75

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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.