Home / 188,289.17-259,763.93-120,288.51

Finding the Fourth Proportional to 188,289.17, 259,763.93 and 120,288.51

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Solution

The fourth proportional to 188,289.17, 259,763.93 and 120,288.51 is: 165,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,289.17 : 259,763.93 = 120,288.51 : x
  2. Step 2: Convert to fraction form
    188,289.17/259,763.93 = 120,288.51/x
  3. Step 3: Cross multiply
    188,289.17x = 259,763.93 × 120,288.51
  4. Step 4: Simplify right side
    188,289.17x = 31,246,615,941.08
  5. Step 5: Solve for x
    x = 31,246,615,941.08/188,289.17
  6. Step 6: Final answer
    x = 165,950.15

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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.