Home / 103,821.26-143,271.63-58,503.87

Finding the Fourth Proportional to 103,821.26, 143,271.63 and 58,503.87

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Solution

The fourth proportional to 103,821.26, 143,271.63 and 58,503.87 is: 80,734.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,821.26 : 143,271.63 = 58,503.87 : x
  2. Step 2: Convert to fraction form
    103,821.26/143,271.63 = 58,503.87/x
  3. Step 3: Cross multiply
    103,821.26x = 143,271.63 × 58,503.87
  4. Step 4: Simplify right side
    103,821.26x = 8,381,944,816.21
  5. Step 5: Solve for x
    x = 8,381,944,816.21/103,821.26
  6. Step 6: Final answer
    x = 80,734.38

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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.