Home / 86,653.40-129,767.81-71,568.23

Finding the Fourth Proportional to 86,653.40, 129,767.81 and 71,568.23

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Solution

The fourth proportional to 86,653.40, 129,767.81 and 71,568.23 is: 107,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,653.40 : 129,767.81 = 71,568.23 : x
  2. Step 2: Convert to fraction form
    86,653.40/129,767.81 = 71,568.23/x
  3. Step 3: Cross multiply
    86,653.40x = 129,767.81 × 71,568.23
  4. Step 4: Simplify right side
    86,653.40x = 9,287,251,466.00
  5. Step 5: Solve for x
    x = 9,287,251,466.00/86,653.40
  6. Step 6: Final answer
    x = 107,177.01

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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.