Home / 109,625.22-151,312.05-61,906.50

Finding the Fourth Proportional to 109,625.22, 151,312.05 and 61,906.50

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Solution

The fourth proportional to 109,625.22, 151,312.05 and 61,906.50 is: 85,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,625.22 : 151,312.05 = 61,906.50 : x
  2. Step 2: Convert to fraction form
    109,625.22/151,312.05 = 61,906.50/x
  3. Step 3: Cross multiply
    109,625.22x = 151,312.05 × 61,906.50
  4. Step 4: Simplify right side
    109,625.22x = 9,367,199,423.33
  5. Step 5: Solve for x
    x = 9,367,199,423.33/109,625.22
  6. Step 6: Final answer
    x = 85,447.49

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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.