Home / 109,638.36-164,523.16-47,308.86

Finding the Fourth Proportional to 109,638.36, 164,523.16 and 47,308.86

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Solution

The fourth proportional to 109,638.36, 164,523.16 and 47,308.86 is: 70,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,638.36 : 164,523.16 = 47,308.86 : x
  2. Step 2: Convert to fraction form
    109,638.36/164,523.16 = 47,308.86/x
  3. Step 3: Cross multiply
    109,638.36x = 164,523.16 × 47,308.86
  4. Step 4: Simplify right side
    109,638.36x = 7,783,403,024.93
  5. Step 5: Solve for x
    x = 7,783,403,024.93/109,638.36
  6. Step 6: Final answer
    x = 70,991.60

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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.