Home / 164,320.78-226,709.67-129,755.80

Finding the Fourth Proportional to 164,320.78, 226,709.67 and 129,755.80

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Solution

The fourth proportional to 164,320.78, 226,709.67 and 129,755.80 is: 179,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,320.78 : 226,709.67 = 129,755.80 : x
  2. Step 2: Convert to fraction form
    164,320.78/226,709.67 = 129,755.80/x
  3. Step 3: Cross multiply
    164,320.78x = 226,709.67 × 129,755.80
  4. Step 4: Simplify right side
    164,320.78x = 29,416,894,598.59
  5. Step 5: Solve for x
    x = 29,416,894,598.59/164,320.78
  6. Step 6: Final answer
    x = 179,021.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.