Home / 104,185.43-143,776.32-56,438.77

Finding the Fourth Proportional to 104,185.43, 143,776.32 and 56,438.77

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Solution

The fourth proportional to 104,185.43, 143,776.32 and 56,438.77 is: 77,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,185.43 : 143,776.32 = 56,438.77 : x
  2. Step 2: Convert to fraction form
    104,185.43/143,776.32 = 56,438.77/x
  3. Step 3: Cross multiply
    104,185.43x = 143,776.32 × 56,438.77
  4. Step 4: Simplify right side
    104,185.43x = 8,114,558,296.49
  5. Step 5: Solve for x
    x = 8,114,558,296.49/104,185.43
  6. Step 6: Final answer
    x = 77,885.73

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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.