Home / 211,460.45-291,812.69-120,815.71

Finding the Fourth Proportional to 211,460.45, 291,812.69 and 120,815.71

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Solution

The fourth proportional to 211,460.45, 291,812.69 and 120,815.71 is: 166,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,460.45 : 291,812.69 = 120,815.71 : x
  2. Step 2: Convert to fraction form
    211,460.45/291,812.69 = 120,815.71/x
  3. Step 3: Cross multiply
    211,460.45x = 291,812.69 × 120,815.71
  4. Step 4: Simplify right side
    211,460.45x = 35,255,556,901.87
  5. Step 5: Solve for x
    x = 35,255,556,901.87/211,460.45
  6. Step 6: Final answer
    x = 166,724.12

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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.