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Finding the Fourth Proportional to 125,615.67, 173,357.38 and 71,899.46

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Solution

The fourth proportional to 125,615.67, 173,357.38 and 71,899.46 is: 99,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,615.67 : 173,357.38 = 71,899.46 : x
  2. Step 2: Convert to fraction form
    125,615.67/173,357.38 = 71,899.46/x
  3. Step 3: Cross multiply
    125,615.67x = 173,357.38 × 71,899.46
  4. Step 4: Simplify right side
    125,615.67x = 12,464,302,009.01
  5. Step 5: Solve for x
    x = 12,464,302,009.01/125,615.67
  6. Step 6: Final answer
    x = 99,225.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.