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Finding the Fourth Proportional to 125,000.56, 172,466.60 and 71,265.98

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Solution

The fourth proportional to 125,000.56, 172,466.60 and 71,265.98 is: 98,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,000.56 : 172,466.60 = 71,265.98 : x
  2. Step 2: Convert to fraction form
    125,000.56/172,466.60 = 71,265.98/x
  3. Step 3: Cross multiply
    125,000.56x = 172,466.60 × 71,265.98
  4. Step 4: Simplify right side
    125,000.56x = 12,291,001,266.27
  5. Step 5: Solve for x
    x = 12,291,001,266.27/125,000.56
  6. Step 6: Final answer
    x = 98,327.57

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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.