Home / 109,883.83-164,530.50-90,397.66

Finding the Fourth Proportional to 109,883.83, 164,530.50 and 90,397.66

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Solution

The fourth proportional to 109,883.83, 164,530.50 and 90,397.66 is: 135,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,883.83 : 164,530.50 = 90,397.66 : x
  2. Step 2: Convert to fraction form
    109,883.83/164,530.50 = 90,397.66/x
  3. Step 3: Cross multiply
    109,883.83x = 164,530.50 × 90,397.66
  4. Step 4: Simplify right side
    109,883.83x = 14,873,172,198.63
  5. Step 5: Solve for x
    x = 14,873,172,198.63/109,883.83
  6. Step 6: Final answer
    x = 135,353.60

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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.