Home / 109,947.97-164,938.16-39,810.88

Finding the Fourth Proportional to 109,947.97, 164,938.16 and 39,810.88

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Solution

The fourth proportional to 109,947.97, 164,938.16 and 39,810.88 is: 59,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,947.97 : 164,938.16 = 39,810.88 : x
  2. Step 2: Convert to fraction form
    109,947.97/164,938.16 = 39,810.88/x
  3. Step 3: Cross multiply
    109,947.97x = 164,938.16 × 39,810.88
  4. Step 4: Simplify right side
    109,947.97x = 6,566,333,295.18
  5. Step 5: Solve for x
    x = 6,566,333,295.18/109,947.97
  6. Step 6: Final answer
    x = 59,722.19

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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.