Home / 122,988.48-184,508.64-39,876

Finding the Fourth Proportional to 122,988.48, 184,508.64 and 39,876

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Solution

The fourth proportional to 122,988.48, 184,508.64 and 39,876 is: 59,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,988.48 : 184,508.64 = 39,876 : x
  2. Step 2: Convert to fraction form
    122,988.48/184,508.64 = 39,876/x
  3. Step 3: Cross multiply
    122,988.48x = 184,508.64 × 39,876
  4. Step 4: Simplify right side
    122,988.48x = 7,357,466,528.64
  5. Step 5: Solve for x
    x = 7,357,466,528.64/122,988.48
  6. Step 6: Final answer
    x = 59,822.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.