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Finding the Fourth Proportional to 125,393.92, 173,016.16 and 79,466.88

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Solution

The fourth proportional to 125,393.92, 173,016.16 and 79,466.88 is: 109,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,393.92 : 173,016.16 = 79,466.88 : x
  2. Step 2: Convert to fraction form
    125,393.92/173,016.16 = 79,466.88/x
  3. Step 3: Cross multiply
    125,393.92x = 173,016.16 × 79,466.88
  4. Step 4: Simplify right side
    125,393.92x = 13,749,054,424.78
  5. Step 5: Solve for x
    x = 13,749,054,424.78/125,393.92
  6. Step 6: Final answer
    x = 109,646.90

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1.5x scale

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.