Home / 109,402.40-164,013.60-49,434.80

Finding the Fourth Proportional to 109,402.40, 164,013.60 and 49,434.80

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Solution

The fourth proportional to 109,402.40, 164,013.60 and 49,434.80 is: 74,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,402.40 : 164,013.60 = 49,434.80 : x
  2. Step 2: Convert to fraction form
    109,402.40/164,013.60 = 49,434.80/x
  3. Step 3: Cross multiply
    109,402.40x = 164,013.60 × 49,434.80
  4. Step 4: Simplify right side
    109,402.40x = 8,107,979,513.28
  5. Step 5: Solve for x
    x = 8,107,979,513.28/109,402.40
  6. Step 6: Final answer
    x = 74,111.53

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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.