Home / 109,664.70-164,561.85-72,332.70

Finding the Fourth Proportional to 109,664.70, 164,561.85 and 72,332.70

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Solution

The fourth proportional to 109,664.70, 164,561.85 and 72,332.70 is: 108,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,664.70 : 164,561.85 = 72,332.70 : x
  2. Step 2: Convert to fraction form
    109,664.70/164,561.85 = 72,332.70/x
  3. Step 3: Cross multiply
    109,664.70x = 164,561.85 × 72,332.70
  4. Step 4: Simplify right side
    109,664.70x = 11,903,202,927.50
  5. Step 5: Solve for x
    x = 11,903,202,927.50/109,664.70
  6. Step 6: Final answer
    x = 108,541.79

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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.