Home / 139,666.30-192,835.92-130,743.34

Finding the Fourth Proportional to 139,666.30, 192,835.92 and 130,743.34

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Solution

The fourth proportional to 139,666.30, 192,835.92 and 130,743.34 is: 180,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,666.30 : 192,835.92 = 130,743.34 : x
  2. Step 2: Convert to fraction form
    139,666.30/192,835.92 = 130,743.34/x
  3. Step 3: Cross multiply
    139,666.30x = 192,835.92 × 130,743.34
  4. Step 4: Simplify right side
    139,666.30x = 25,212,012,252.77
  5. Step 5: Solve for x
    x = 25,212,012,252.77/139,666.30
  6. Step 6: Final answer
    x = 180,516.07

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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.