Home / 130,520.73-195,858.87-47,421.21

Finding the Fourth Proportional to 130,520.73, 195,858.87 and 47,421.21

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Solution

The fourth proportional to 130,520.73, 195,858.87 and 47,421.21 is: 71,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,520.73 : 195,858.87 = 47,421.21 : x
  2. Step 2: Convert to fraction form
    130,520.73/195,858.87 = 47,421.21/x
  3. Step 3: Cross multiply
    130,520.73x = 195,858.87 × 47,421.21
  4. Step 4: Simplify right side
    130,520.73x = 9,287,864,604.63
  5. Step 5: Solve for x
    x = 9,287,864,604.63/130,520.73
  6. Step 6: Final answer
    x = 71,160.07

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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.