Home / 139,907.72-193,067.02-76,244.15

Finding the Fourth Proportional to 139,907.72, 193,067.02 and 76,244.15

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Solution

The fourth proportional to 139,907.72, 193,067.02 and 76,244.15 is: 105,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,907.72 : 193,067.02 = 76,244.15 : x
  2. Step 2: Convert to fraction form
    139,907.72/193,067.02 = 76,244.15/x
  3. Step 3: Cross multiply
    139,907.72x = 193,067.02 × 76,244.15
  4. Step 4: Simplify right side
    139,907.72x = 14,720,230,832.93
  5. Step 5: Solve for x
    x = 14,720,230,832.93/139,907.72
  6. Step 6: Final answer
    x = 105,213.86

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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.