Home / 130,436.69-195,623.56-54,494.20

Finding the Fourth Proportional to 130,436.69, 195,623.56 and 54,494.20

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Solution

The fourth proportional to 130,436.69, 195,623.56 and 54,494.20 is: 81,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,436.69 : 195,623.56 = 54,494.20 : x
  2. Step 2: Convert to fraction form
    130,436.69/195,623.56 = 54,494.20/x
  3. Step 3: Cross multiply
    130,436.69x = 195,623.56 × 54,494.20
  4. Step 4: Simplify right side
    130,436.69x = 10,660,349,130.88
  5. Step 5: Solve for x
    x = 10,660,349,130.88/130,436.69
  6. Step 6: Final answer
    x = 81,728.15

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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.