Home / 103,994.30-143,511.80-56,247.63

Finding the Fourth Proportional to 103,994.30, 143,511.80 and 56,247.63

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Solution

The fourth proportional to 103,994.30, 143,511.80 and 56,247.63 is: 77,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,994.30 : 143,511.80 = 56,247.63 : x
  2. Step 2: Convert to fraction form
    103,994.30/143,511.80 = 56,247.63/x
  3. Step 3: Cross multiply
    103,994.30x = 143,511.80 × 56,247.63
  4. Step 4: Simplify right side
    103,994.30x = 8,072,198,345.80
  5. Step 5: Solve for x
    x = 8,072,198,345.80/103,994.30
  6. Step 6: Final answer
    x = 77,621.55

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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.