Home / 211,979.89-292,545.27-121,333.75

Finding the Fourth Proportional to 211,979.89, 292,545.27 and 121,333.75

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Solution

The fourth proportional to 211,979.89, 292,545.27 and 121,333.75 is: 167,448.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,979.89 : 292,545.27 = 121,333.75 : x
  2. Step 2: Convert to fraction form
    211,979.89/292,545.27 = 121,333.75/x
  3. Step 3: Cross multiply
    211,979.89x = 292,545.27 × 121,333.75
  4. Step 4: Simplify right side
    211,979.89x = 35,495,613,922.50
  5. Step 5: Solve for x
    x = 35,495,613,922.50/211,979.89
  6. Step 6: Final answer
    x = 167,448.03

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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.