Home / 211,194.72-316,879.55-84,924.40

Finding the Fourth Proportional to 211,194.72, 316,879.55 and 84,924.40

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Solution

The fourth proportional to 211,194.72, 316,879.55 and 84,924.40 is: 127,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,194.72 : 316,879.55 = 84,924.40 : x
  2. Step 2: Convert to fraction form
    211,194.72/316,879.55 = 84,924.40/x
  3. Step 3: Cross multiply
    211,194.72x = 316,879.55 × 84,924.40
  4. Step 4: Simplify right side
    211,194.72x = 26,910,805,656.02
  5. Step 5: Solve for x
    x = 26,910,805,656.02/211,194.72
  6. Step 6: Final answer
    x = 127,421.77

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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.