Home / 104,263.13-143,879.26-56,515.45

Finding the Fourth Proportional to 104,263.13, 143,879.26 and 56,515.45

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Solution

The fourth proportional to 104,263.13, 143,879.26 and 56,515.45 is: 77,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,263.13 : 143,879.26 = 56,515.45 : x
  2. Step 2: Convert to fraction form
    104,263.13/143,879.26 = 56,515.45/x
  3. Step 3: Cross multiply
    104,263.13x = 143,879.26 × 56,515.45
  4. Step 4: Simplify right side
    104,263.13x = 8,131,401,124.57
  5. Step 5: Solve for x
    x = 8,131,401,124.57/104,263.13
  6. Step 6: Final answer
    x = 77,989.23

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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.