Home / 139,520.34-192,537.63-75,858.30

Finding the Fourth Proportional to 139,520.34, 192,537.63 and 75,858.30

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Solution

The fourth proportional to 139,520.34, 192,537.63 and 75,858.30 is: 104,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,520.34 : 192,537.63 = 75,858.30 : x
  2. Step 2: Convert to fraction form
    139,520.34/192,537.63 = 75,858.30/x
  3. Step 3: Cross multiply
    139,520.34x = 192,537.63 × 75,858.30
  4. Step 4: Simplify right side
    139,520.34x = 14,605,577,297.83
  5. Step 5: Solve for x
    x = 14,605,577,297.83/139,520.34
  6. Step 6: Final answer
    x = 104,684.22

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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.