Home / 130,390.48-195,585.72-71,193.86

Finding the Fourth Proportional to 130,390.48, 195,585.72 and 71,193.86

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Solution

The fourth proportional to 130,390.48, 195,585.72 and 71,193.86 is: 106,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,390.48 : 195,585.72 = 71,193.86 : x
  2. Step 2: Convert to fraction form
    130,390.48/195,585.72 = 71,193.86/x
  3. Step 3: Cross multiply
    130,390.48x = 195,585.72 × 71,193.86
  4. Step 4: Simplify right side
    130,390.48x = 13,924,501,033.78
  5. Step 5: Solve for x
    x = 13,924,501,033.78/130,390.48
  6. Step 6: Final answer
    x = 106,790.78

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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.