Home / 104,260.42-143,879.55-56,513.74

Finding the Fourth Proportional to 104,260.42, 143,879.55 and 56,513.74

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Solution

The fourth proportional to 104,260.42, 143,879.55 and 56,513.74 is: 77,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,260.42 : 143,879.55 = 56,513.74 : x
  2. Step 2: Convert to fraction form
    104,260.42/143,879.55 = 56,513.74/x
  3. Step 3: Cross multiply
    104,260.42x = 143,879.55 × 56,513.74
  4. Step 4: Simplify right side
    104,260.42x = 8,131,171,480.02
  5. Step 5: Solve for x
    x = 8,131,171,480.02/104,260.42
  6. Step 6: Final answer
    x = 77,989.05

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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.