Home / 103,860.57-143,327.37-56,113.77

Finding the Fourth Proportional to 103,860.57, 143,327.37 and 56,113.77

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Solution

The fourth proportional to 103,860.57, 143,327.37 and 56,113.77 is: 77,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,860.57 : 143,327.37 = 56,113.77 : x
  2. Step 2: Convert to fraction form
    103,860.57/143,327.37 = 56,113.77/x
  3. Step 3: Cross multiply
    103,860.57x = 143,327.37 × 56,113.77
  4. Step 4: Simplify right side
    103,860.57x = 8,042,639,074.88
  5. Step 5: Solve for x
    x = 8,042,639,074.88/103,860.57
  6. Step 6: Final answer
    x = 77,436.89

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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.