Home / 211,155.39-316,667.52-76,201.92

Finding the Fourth Proportional to 211,155.39, 316,667.52 and 76,201.92

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Solution

The fourth proportional to 211,155.39, 316,667.52 and 76,201.92 is: 114,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,155.39 : 316,667.52 = 76,201.92 : x
  2. Step 2: Convert to fraction form
    211,155.39/316,667.52 = 76,201.92/x
  3. Step 3: Cross multiply
    211,155.39x = 316,667.52 × 76,201.92
  4. Step 4: Simplify right side
    211,155.39x = 24,130,673,025.64
  5. Step 5: Solve for x
    x = 24,130,673,025.64/211,155.39
  6. Step 6: Final answer
    x = 114,279.22

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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.