Home / 130,968.47-196,453.80-71,771.87

Finding the Fourth Proportional to 130,968.47, 196,453.80 and 71,771.87

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Solution

The fourth proportional to 130,968.47, 196,453.80 and 71,771.87 is: 107,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,968.47 : 196,453.80 = 71,771.87 : x
  2. Step 2: Convert to fraction form
    130,968.47/196,453.80 = 71,771.87/x
  3. Step 3: Cross multiply
    130,968.47x = 196,453.80 × 71,771.87
  4. Step 4: Simplify right side
    130,968.47x = 14,099,855,612.34
  5. Step 5: Solve for x
    x = 14,099,855,612.34/130,968.47
  6. Step 6: Final answer
    x = 107,658.40

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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.