Home / 86,106.84-129,160.67-26,135.83

Finding the Fourth Proportional to 86,106.84, 129,160.67 and 26,135.83

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Solution

The fourth proportional to 86,106.84, 129,160.67 and 26,135.83 is: 39,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,106.84 : 129,160.67 = 26,135.83 : x
  2. Step 2: Convert to fraction form
    86,106.84/129,160.67 = 26,135.83/x
  3. Step 3: Cross multiply
    86,106.84x = 129,160.67 × 26,135.83
  4. Step 4: Simplify right side
    86,106.84x = 3,375,721,313.81
  5. Step 5: Solve for x
    x = 3,375,721,313.81/86,106.84
  6. Step 6: Final answer
    x = 39,203.87

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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.