Home / 130,621.10-195,927.87-77,676.26

Finding the Fourth Proportional to 130,621.10, 195,927.87 and 77,676.26

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Solution

The fourth proportional to 130,621.10, 195,927.87 and 77,676.26 is: 116,512.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,621.10 : 195,927.87 = 77,676.26 : x
  2. Step 2: Convert to fraction form
    130,621.10/195,927.87 = 77,676.26/x
  3. Step 3: Cross multiply
    130,621.10x = 195,927.87 × 77,676.26
  4. Step 4: Simplify right side
    130,621.10x = 15,218,944,171.37
  5. Step 5: Solve for x
    x = 15,218,944,171.37/130,621.10
  6. Step 6: Final answer
    x = 116,512.14

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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.