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Finding the Fourth Proportional to 125,454, 173,128.55 and 68,094.46

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Solution

The fourth proportional to 125,454, 173,128.55 and 68,094.46 is: 93,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,454 : 173,128.55 = 68,094.46 : x
  2. Step 2: Convert to fraction form
    125,454/173,128.55 = 68,094.46/x
  3. Step 3: Cross multiply
    125,454x = 173,128.55 × 68,094.46
  4. Step 4: Simplify right side
    125,454x = 11,789,095,122.83
  5. Step 5: Solve for x
    x = 11,789,095,122.83/125,454
  6. Step 6: Final answer
    x = 93,971.46

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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.