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Finding the Fourth Proportional to 125,376.75, 173,019.91 and 71,662.92

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Solution

The fourth proportional to 125,376.75, 173,019.91 and 71,662.92 is: 98,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,376.75 : 173,019.91 = 71,662.92 : x
  2. Step 2: Convert to fraction form
    125,376.75/173,019.91 = 71,662.92/x
  3. Step 3: Cross multiply
    125,376.75x = 173,019.91 × 71,662.92
  4. Step 4: Simplify right side
    125,376.75x = 12,399,112,058.32
  5. Step 5: Solve for x
    x = 12,399,112,058.32/125,376.75
  6. Step 6: Final answer
    x = 98,894.83

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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.