Home / 130,401.90-179,997.39-76,684.32

Finding the Fourth Proportional to 130,401.90, 179,997.39 and 76,684.32

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Solution

The fourth proportional to 130,401.90, 179,997.39 and 76,684.32 is: 105,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,401.90 : 179,997.39 = 76,684.32 : x
  2. Step 2: Convert to fraction form
    130,401.90/179,997.39 = 76,684.32/x
  3. Step 3: Cross multiply
    130,401.90x = 179,997.39 × 76,684.32
  4. Step 4: Simplify right side
    130,401.90x = 13,802,977,453.92
  5. Step 5: Solve for x
    x = 13,802,977,453.92/130,401.90
  6. Step 6: Final answer
    x = 105,849.51

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1.5x scale

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.