Home / 109,427.70-164,044.35-72,005.70

Finding the Fourth Proportional to 109,427.70, 164,044.35 and 72,005.70

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Solution

The fourth proportional to 109,427.70, 164,044.35 and 72,005.70 is: 107,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,427.70 : 164,044.35 = 72,005.70 : x
  2. Step 2: Convert to fraction form
    109,427.70/164,044.35 = 72,005.70/x
  3. Step 3: Cross multiply
    109,427.70x = 164,044.35 × 72,005.70
  4. Step 4: Simplify right side
    109,427.70x = 11,812,128,252.80
  5. Step 5: Solve for x
    x = 11,812,128,252.80/109,427.70
  6. Step 6: Final answer
    x = 107,944.59

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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.