Home / 136,528.06-188,402.52-76,105.30

Finding the Fourth Proportional to 136,528.06, 188,402.52 and 76,105.30

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Solution

The fourth proportional to 136,528.06, 188,402.52 and 76,105.30 is: 105,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,528.06 : 188,402.52 = 76,105.30 : x
  2. Step 2: Convert to fraction form
    136,528.06/188,402.52 = 76,105.30/x
  3. Step 3: Cross multiply
    136,528.06x = 188,402.52 × 76,105.30
  4. Step 4: Simplify right side
    136,528.06x = 14,338,430,305.36
  5. Step 5: Solve for x
    x = 14,338,430,305.36/136,528.06
  6. Step 6: Final answer
    x = 105,021.86

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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.