Home / 125,318-172,938.93-68,729.60

Finding the Fourth Proportional to 125,318, 172,938.93 and 68,729.60

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Solution

The fourth proportional to 125,318, 172,938.93 and 68,729.60 is: 94,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,318 : 172,938.93 = 68,729.60 : x
  2. Step 2: Convert to fraction form
    125,318/172,938.93 = 68,729.60/x
  3. Step 3: Cross multiply
    125,318x = 172,938.93 × 68,729.60
  4. Step 4: Simplify right side
    125,318x = 11,886,023,483.33
  5. Step 5: Solve for x
    x = 11,886,023,483.33/125,318
  6. Step 6: Final answer
    x = 94,846.90

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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.