Home / 130,763.47-196,220.88-54,855.21

Finding the Fourth Proportional to 130,763.47, 196,220.88 and 54,855.21

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Solution

The fourth proportional to 130,763.47, 196,220.88 and 54,855.21 is: 82,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,763.47 : 196,220.88 = 54,855.21 : x
  2. Step 2: Convert to fraction form
    130,763.47/196,220.88 = 54,855.21/x
  3. Step 3: Cross multiply
    130,763.47x = 196,220.88 × 54,855.21
  4. Step 4: Simplify right side
    130,763.47x = 10,763,737,578.78
  5. Step 5: Solve for x
    x = 10,763,737,578.78/130,763.47
  6. Step 6: Final answer
    x = 82,314.56

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1.5x scale

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.