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Finding the Fourth Proportional to 125,902, 173,745 and 68,541.04

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Solution

The fourth proportional to 125,902, 173,745 and 68,541.04 is: 94,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,902 : 173,745 = 68,541.04 : x
  2. Step 2: Convert to fraction form
    125,902/173,745 = 68,541.04/x
  3. Step 3: Cross multiply
    125,902x = 173,745 × 68,541.04
  4. Step 4: Simplify right side
    125,902x = 11,908,662,994.80
  5. Step 5: Solve for x
    x = 11,908,662,994.80/125,902
  6. Step 6: Final answer
    x = 94,586.77

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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.