Home / 211,878.92-292,321.53-119,985.62

Finding the Fourth Proportional to 211,878.92, 292,321.53 and 119,985.62

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Solution

The fourth proportional to 211,878.92, 292,321.53 and 119,985.62 is: 165,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,878.92 : 292,321.53 = 119,985.62 : x
  2. Step 2: Convert to fraction form
    211,878.92/292,321.53 = 119,985.62/x
  3. Step 3: Cross multiply
    211,878.92x = 292,321.53 × 119,985.62
  4. Step 4: Simplify right side
    211,878.92x = 35,074,380,016.40
  5. Step 5: Solve for x
    x = 35,074,380,016.40/211,878.92
  6. Step 6: Final answer
    x = 165,539.73

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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.