Home / 109,623.20-164,434.80-39,504.80

Finding the Fourth Proportional to 109,623.20, 164,434.80 and 39,504.80

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Solution

The fourth proportional to 109,623.20, 164,434.80 and 39,504.80 is: 59,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,623.20 : 164,434.80 = 39,504.80 : x
  2. Step 2: Convert to fraction form
    109,623.20/164,434.80 = 39,504.80/x
  3. Step 3: Cross multiply
    109,623.20x = 164,434.80 × 39,504.80
  4. Step 4: Simplify right side
    109,623.20x = 6,495,963,887.04
  5. Step 5: Solve for x
    x = 6,495,963,887.04/109,623.20
  6. Step 6: Final answer
    x = 59,257.20

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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.