Home / 124,883.39-172,354.82-81,899.03

Finding the Fourth Proportional to 124,883.39, 172,354.82 and 81,899.03

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Solution

The fourth proportional to 124,883.39, 172,354.82 and 81,899.03 is: 113,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,883.39 : 172,354.82 = 81,899.03 : x
  2. Step 2: Convert to fraction form
    124,883.39/172,354.82 = 81,899.03/x
  3. Step 3: Cross multiply
    124,883.39x = 172,354.82 × 81,899.03
  4. Step 4: Simplify right side
    124,883.39x = 14,115,691,302.56
  5. Step 5: Solve for x
    x = 14,115,691,302.56/124,883.39
  6. Step 6: Final answer
    x = 113,030.98

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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.