Home / 130,329-179,855.64-73,739.16

Finding the Fourth Proportional to 130,329, 179,855.64 and 73,739.16

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Solution

The fourth proportional to 130,329, 179,855.64 and 73,739.16 is: 101,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,329 : 179,855.64 = 73,739.16 : x
  2. Step 2: Convert to fraction form
    130,329/179,855.64 = 73,739.16/x
  3. Step 3: Cross multiply
    130,329x = 179,855.64 × 73,739.16
  4. Step 4: Simplify right side
    130,329x = 13,262,403,814.86
  5. Step 5: Solve for x
    x = 13,262,403,814.86/130,329
  6. Step 6: Final answer
    x = 101,760.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.