Home / 211,374.90-291,699.75-120,742.86

Finding the Fourth Proportional to 211,374.90, 291,699.75 and 120,742.86

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Solution

The fourth proportional to 211,374.90, 291,699.75 and 120,742.86 is: 166,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,374.90 : 291,699.75 = 120,742.86 : x
  2. Step 2: Convert to fraction form
    211,374.90/291,699.75 = 120,742.86/x
  3. Step 3: Cross multiply
    211,374.90x = 291,699.75 × 120,742.86
  4. Step 4: Simplify right side
    211,374.90x = 35,220,662,076.29
  5. Step 5: Solve for x
    x = 35,220,662,076.29/211,374.90
  6. Step 6: Final answer
    x = 166,626.51

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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.