Home / 102,080.45-153,120.16-26,178.65

Finding the Fourth Proportional to 102,080.45, 153,120.16 and 26,178.65

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Solution

The fourth proportional to 102,080.45, 153,120.16 and 26,178.65 is: 39,267.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,080.45 : 153,120.16 = 26,178.65 : x
  2. Step 2: Convert to fraction form
    102,080.45/153,120.16 = 26,178.65/x
  3. Step 3: Cross multiply
    102,080.45x = 153,120.16 × 26,178.65
  4. Step 4: Simplify right side
    102,080.45x = 4,008,478,770.65
  5. Step 5: Solve for x
    x = 4,008,478,770.65/102,080.45
  6. Step 6: Final answer
    x = 39,267.84

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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.