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Finding the Fourth Proportional to 139,479.95, 192,575.03 and 107,157.00

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Solution

The fourth proportional to 139,479.95, 192,575.03 and 107,157.00 is: 147,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,479.95 : 192,575.03 = 107,157.00 : x
  2. Step 2: Convert to fraction form
    139,479.95/192,575.03 = 107,157.00/x
  3. Step 3: Cross multiply
    139,479.95x = 192,575.03 × 107,157.00
  4. Step 4: Simplify right side
    139,479.95x = 20,635,762,676.08
  5. Step 5: Solve for x
    x = 20,635,762,676.08/139,479.95
  6. Step 6: Final answer
    x = 147,947.88

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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.