Home / 86,790.48-130,185.72-82,358.16

Finding the Fourth Proportional to 86,790.48, 130,185.72 and 82,358.16

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Solution

The fourth proportional to 86,790.48, 130,185.72 and 82,358.16 is: 123,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,790.48 : 130,185.72 = 82,358.16 : x
  2. Step 2: Convert to fraction form
    86,790.48/130,185.72 = 82,358.16/x
  3. Step 3: Cross multiply
    86,790.48x = 130,185.72 × 82,358.16
  4. Step 4: Simplify right side
    86,790.48x = 10,721,856,357.48
  5. Step 5: Solve for x
    x = 10,721,856,357.48/86,790.48
  6. Step 6: Final answer
    x = 123,537.24

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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.