Home / 86,146.31-129,221.90-23,816.81

Finding the Fourth Proportional to 86,146.31, 129,221.90 and 23,816.81

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Solution

The fourth proportional to 86,146.31, 129,221.90 and 23,816.81 is: 35,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,146.31 : 129,221.90 = 23,816.81 : x
  2. Step 2: Convert to fraction form
    86,146.31/129,221.90 = 23,816.81/x
  3. Step 3: Cross multiply
    86,146.31x = 129,221.90 × 23,816.81
  4. Step 4: Simplify right side
    86,146.31x = 3,077,652,674.95
  5. Step 5: Solve for x
    x = 3,077,652,674.95/86,146.31
  6. Step 6: Final answer
    x = 35,725.88

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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.