Home / 109,601.70-164,402.55-74,172.30

Finding the Fourth Proportional to 109,601.70, 164,402.55 and 74,172.30

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Solution

The fourth proportional to 109,601.70, 164,402.55 and 74,172.30 is: 111,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,601.70 : 164,402.55 = 74,172.30 : x
  2. Step 2: Convert to fraction form
    109,601.70/164,402.55 = 74,172.30/x
  3. Step 3: Cross multiply
    109,601.70x = 164,402.55 × 74,172.30
  4. Step 4: Simplify right side
    109,601.70x = 12,194,115,259.37
  5. Step 5: Solve for x
    x = 12,194,115,259.37/109,601.70
  6. Step 6: Final answer
    x = 111,258.45

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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.