Home / 109,834.80-164,946.60-84,935.40

Finding the Fourth Proportional to 109,834.80, 164,946.60 and 84,935.40

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Solution

The fourth proportional to 109,834.80, 164,946.60 and 84,935.40 is: 127,553.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,834.80 : 164,946.60 = 84,935.40 : x
  2. Step 2: Convert to fraction form
    109,834.80/164,946.60 = 84,935.40/x
  3. Step 3: Cross multiply
    109,834.80x = 164,946.60 × 84,935.40
  4. Step 4: Simplify right side
    109,834.80x = 14,009,805,449.64
  5. Step 5: Solve for x
    x = 14,009,805,449.64/109,834.80
  6. Step 6: Final answer
    x = 127,553.43

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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.