Home / 104,520.12-144,240.44-56,776.20

Finding the Fourth Proportional to 104,520.12, 144,240.44 and 56,776.20

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Solution

The fourth proportional to 104,520.12, 144,240.44 and 56,776.20 is: 78,352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,520.12 : 144,240.44 = 56,776.20 : x
  2. Step 2: Convert to fraction form
    104,520.12/144,240.44 = 56,776.20/x
  3. Step 3: Cross multiply
    104,520.12x = 144,240.44 × 56,776.20
  4. Step 4: Simplify right side
    104,520.12x = 8,189,424,069.53
  5. Step 5: Solve for x
    x = 8,189,424,069.53/104,520.12
  6. Step 6: Final answer
    x = 78,352.61

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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.