Home / 130,508.72-195,720.96-36,989.36

Finding the Fourth Proportional to 130,508.72, 195,720.96 and 36,989.36

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Solution

The fourth proportional to 130,508.72, 195,720.96 and 36,989.36 is: 55,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,508.72 : 195,720.96 = 36,989.36 : x
  2. Step 2: Convert to fraction form
    130,508.72/195,720.96 = 36,989.36/x
  3. Step 3: Cross multiply
    130,508.72x = 195,720.96 × 36,989.36
  4. Step 4: Simplify right side
    130,508.72x = 7,239,593,048.99
  5. Step 5: Solve for x
    x = 7,239,593,048.99/130,508.72
  6. Step 6: Final answer
    x = 55,472.10

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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.