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Finding the Fourth Proportional to 139,563.58, 192,595.62 and 75,899.92

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Solution

The fourth proportional to 139,563.58, 192,595.62 and 75,899.92 is: 104,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,563.58 : 192,595.62 = 75,899.92 : x
  2. Step 2: Convert to fraction form
    139,563.58/192,595.62 = 75,899.92/x
  3. Step 3: Cross multiply
    139,563.58x = 192,595.62 × 75,899.92
  4. Step 4: Simplify right side
    139,563.58x = 14,617,992,150.35
  5. Step 5: Solve for x
    x = 14,617,992,150.35/139,563.58
  6. Step 6: Final answer
    x = 104,740.74

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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.