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Finding the Fourth Proportional to 125,416.27, 173,074.58 and 71,702.45

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Solution

The fourth proportional to 125,416.27, 173,074.58 and 71,702.45 is: 98,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,416.27 : 173,074.58 = 71,702.45 : x
  2. Step 2: Convert to fraction form
    125,416.27/173,074.58 = 71,702.45/x
  3. Step 3: Cross multiply
    125,416.27x = 173,074.58 × 71,702.45
  4. Step 4: Simplify right side
    125,416.27x = 12,409,871,418.72
  5. Step 5: Solve for x
    x = 12,409,871,418.72/125,416.27
  6. Step 6: Final answer
    x = 98,949.45

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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.