Home / 210,789.95-290,883.96-115,294.59

Finding the Fourth Proportional to 210,789.95, 290,883.96 and 115,294.59

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Solution

The fourth proportional to 210,789.95, 290,883.96 and 115,294.59 is: 159,103.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,789.95 : 290,883.96 = 115,294.59 : x
  2. Step 2: Convert to fraction form
    210,789.95/290,883.96 = 115,294.59/x
  3. Step 3: Cross multiply
    210,789.95x = 290,883.96 × 115,294.59
  4. Step 4: Simplify right side
    210,789.95x = 33,537,346,905.78
  5. Step 5: Solve for x
    x = 33,537,346,905.78/210,789.95
  6. Step 6: Final answer
    x = 159,103.16

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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.