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Finding the Fourth Proportional to 192,080.08, 288,267.14 and 86,972.86

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Solution

The fourth proportional to 192,080.08, 288,267.14 and 86,972.86 is: 130,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,080.08 : 288,267.14 = 86,972.86 : x
  2. Step 2: Convert to fraction form
    192,080.08/288,267.14 = 86,972.86/x
  3. Step 3: Cross multiply
    192,080.08x = 288,267.14 × 86,972.86
  4. Step 4: Simplify right side
    192,080.08x = 25,071,417,609.82
  5. Step 5: Solve for x
    x = 25,071,417,609.82/192,080.08
  6. Step 6: Final answer
    x = 130,525.86

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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.