Home / 192,762.08-289,142.98-80,495.16

Finding the Fourth Proportional to 192,762.08, 289,142.98 and 80,495.16

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Solution

The fourth proportional to 192,762.08, 289,142.98 and 80,495.16 is: 120,742.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,762.08 : 289,142.98 = 80,495.16 : x
  2. Step 2: Convert to fraction form
    192,762.08/289,142.98 = 80,495.16/x
  3. Step 3: Cross multiply
    192,762.08x = 289,142.98 × 80,495.16
  4. Step 4: Simplify right side
    192,762.08x = 23,274,610,437.98
  5. Step 5: Solve for x
    x = 23,274,610,437.98/192,762.08
  6. Step 6: Final answer
    x = 120,742.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.