Home / 140,513.78-210,781.67-40,675.47

Finding the Fourth Proportional to 140,513.78, 210,781.67 and 40,675.47

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Solution

The fourth proportional to 140,513.78, 210,781.67 and 40,675.47 is: 61,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,513.78 : 210,781.67 = 40,675.47 : x
  2. Step 2: Convert to fraction form
    140,513.78/210,781.67 = 40,675.47/x
  3. Step 3: Cross multiply
    140,513.78x = 210,781.67 × 40,675.47
  4. Step 4: Simplify right side
    140,513.78x = 8,573,643,291.26
  5. Step 5: Solve for x
    x = 8,573,643,291.26/140,513.78
  6. Step 6: Final answer
    x = 61,016.39

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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.