Home / 109,675.40-164,513.10-71,621.60

Finding the Fourth Proportional to 109,675.40, 164,513.10 and 71,621.60

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Solution

The fourth proportional to 109,675.40, 164,513.10 and 71,621.60 is: 107,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,675.40 : 164,513.10 = 71,621.60 : x
  2. Step 2: Convert to fraction form
    109,675.40/164,513.10 = 71,621.60/x
  3. Step 3: Cross multiply
    109,675.40x = 164,513.10 × 71,621.60
  4. Step 4: Simplify right side
    109,675.40x = 11,782,691,442.96
  5. Step 5: Solve for x
    x = 11,782,691,442.96/109,675.40
  6. Step 6: Final answer
    x = 107,432.40

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1.5x scale

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.