Home / 139,832.42-192,967.75-76,170.22

Finding the Fourth Proportional to 139,832.42, 192,967.75 and 76,170.22

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Solution

The fourth proportional to 139,832.42, 192,967.75 and 76,170.22 is: 105,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,832.42 : 192,967.75 = 76,170.22 : x
  2. Step 2: Convert to fraction form
    139,832.42/192,967.75 = 76,170.22/x
  3. Step 3: Cross multiply
    139,832.42x = 192,967.75 × 76,170.22
  4. Step 4: Simplify right side
    139,832.42x = 14,698,395,970.41
  5. Step 5: Solve for x
    x = 14,698,395,970.41/139,832.42
  6. Step 6: Final answer
    x = 105,114.36

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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.