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Finding the Fourth Proportional to 125,678.01, 173,425.34 and 73,986.89

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Solution

The fourth proportional to 125,678.01, 173,425.34 and 73,986.89 is: 102,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,678.01 : 173,425.34 = 73,986.89 : x
  2. Step 2: Convert to fraction form
    125,678.01/173,425.34 = 73,986.89/x
  3. Step 3: Cross multiply
    125,678.01x = 173,425.34 × 73,986.89
  4. Step 4: Simplify right side
    125,678.01x = 12,831,202,230.87
  5. Step 5: Solve for x
    x = 12,831,202,230.87/125,678.01
  6. Step 6: Final answer
    x = 102,095.85

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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.