Home / 109,730.90-164,497.80-43,216.40

Finding the Fourth Proportional to 109,730.90, 164,497.80 and 43,216.40

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Solution

The fourth proportional to 109,730.90, 164,497.80 and 43,216.40 is: 64,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,730.90 : 164,497.80 = 43,216.40 : x
  2. Step 2: Convert to fraction form
    109,730.90/164,497.80 = 43,216.40/x
  3. Step 3: Cross multiply
    109,730.90x = 164,497.80 × 43,216.40
  4. Step 4: Simplify right side
    109,730.90x = 7,109,002,723.92
  5. Step 5: Solve for x
    x = 7,109,002,723.92/109,730.90
  6. Step 6: Final answer
    x = 64,785.79

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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.