Home / 139,741.48-192,847.28-76,080.36

Finding the Fourth Proportional to 139,741.48, 192,847.28 and 76,080.36

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Solution

The fourth proportional to 139,741.48, 192,847.28 and 76,080.36 is: 104,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,741.48 : 192,847.28 = 76,080.36 : x
  2. Step 2: Convert to fraction form
    139,741.48/192,847.28 = 76,080.36/x
  3. Step 3: Cross multiply
    139,741.48x = 192,847.28 × 76,080.36
  4. Step 4: Simplify right side
    139,741.48x = 14,671,890,487.42
  5. Step 5: Solve for x
    x = 14,671,890,487.42/139,741.48
  6. Step 6: Final answer
    x = 104,993.10

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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.