Home / 130,992.12-180,763.92-74,397.24

Finding the Fourth Proportional to 130,992.12, 180,763.92 and 74,397.24

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Solution

The fourth proportional to 130,992.12, 180,763.92 and 74,397.24 is: 102,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,992.12 : 180,763.92 = 74,397.24 : x
  2. Step 2: Convert to fraction form
    130,992.12/180,763.92 = 74,397.24/x
  3. Step 3: Cross multiply
    130,992.12x = 180,763.92 × 74,397.24
  4. Step 4: Simplify right side
    130,992.12x = 13,448,336,739.58
  5. Step 5: Solve for x
    x = 13,448,336,739.58/130,992.12
  6. Step 6: Final answer
    x = 102,665.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.