Home / 211,147.48-291,412.52-129,461.29

Finding the Fourth Proportional to 211,147.48, 291,412.52 and 129,461.29

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Solution

The fourth proportional to 211,147.48, 291,412.52 and 129,461.29 is: 178,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,147.48 : 291,412.52 = 129,461.29 : x
  2. Step 2: Convert to fraction form
    211,147.48/291,412.52 = 129,461.29/x
  3. Step 3: Cross multiply
    211,147.48x = 291,412.52 × 129,461.29
  4. Step 4: Simplify right side
    211,147.48x = 37,726,640,761.35
  5. Step 5: Solve for x
    x = 37,726,640,761.35/211,147.48
  6. Step 6: Final answer
    x = 178,674.36

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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.