Home / 110,247.48-165,240-76,786.38

Finding the Fourth Proportional to 110,247.48, 165,240 and 76,786.38

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Solution

The fourth proportional to 110,247.48, 165,240 and 76,786.38 is: 115,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,247.48 : 165,240 = 76,786.38 : x
  2. Step 2: Convert to fraction form
    110,247.48/165,240 = 76,786.38/x
  3. Step 3: Cross multiply
    110,247.48x = 165,240 × 76,786.38
  4. Step 4: Simplify right side
    110,247.48x = 12,688,181,431.20
  5. Step 5: Solve for x
    x = 12,688,181,431.20/110,247.48
  6. Step 6: Final answer
    x = 115,088.18

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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.