Home / 109,774.20-164,661.30-39,655.80

Finding the Fourth Proportional to 109,774.20, 164,661.30 and 39,655.80

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Solution

The fourth proportional to 109,774.20, 164,661.30 and 39,655.80 is: 59,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,774.20 : 164,661.30 = 39,655.80 : x
  2. Step 2: Convert to fraction form
    109,774.20/164,661.30 = 39,655.80/x
  3. Step 3: Cross multiply
    109,774.20x = 164,661.30 × 39,655.80
  4. Step 4: Simplify right side
    109,774.20x = 6,529,775,580.54
  5. Step 5: Solve for x
    x = 6,529,775,580.54/109,774.20
  6. Step 6: Final answer
    x = 59,483.70

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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.