Home / 86,160.20-129,240.51-26,189.22

Finding the Fourth Proportional to 86,160.20, 129,240.51 and 26,189.22

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Solution

The fourth proportional to 86,160.20, 129,240.51 and 26,189.22 is: 39,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,160.20 : 129,240.51 = 26,189.22 : x
  2. Step 2: Convert to fraction form
    86,160.20/129,240.51 = 26,189.22/x
  3. Step 3: Cross multiply
    86,160.20x = 129,240.51 × 26,189.22
  4. Step 4: Simplify right side
    86,160.20x = 3,384,708,018.36
  5. Step 5: Solve for x
    x = 3,384,708,018.36/86,160.20
  6. Step 6: Final answer
    x = 39,283.89

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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.