Home / 109,675.20-164,221.20-70,017.60

Finding the Fourth Proportional to 109,675.20, 164,221.20 and 70,017.60

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Solution

The fourth proportional to 109,675.20, 164,221.20 and 70,017.60 is: 104,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,675.20 : 164,221.20 = 70,017.60 : x
  2. Step 2: Convert to fraction form
    109,675.20/164,221.20 = 70,017.60/x
  3. Step 3: Cross multiply
    109,675.20x = 164,221.20 × 70,017.60
  4. Step 4: Simplify right side
    109,675.20x = 11,498,374,293.12
  5. Step 5: Solve for x
    x = 11,498,374,293.12/109,675.20
  6. Step 6: Final answer
    x = 104,840.24

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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.