Home / 161,011.36-241,565.10-76,878.28

Finding the Fourth Proportional to 161,011.36, 241,565.10 and 76,878.28

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Solution

The fourth proportional to 161,011.36, 241,565.10 and 76,878.28 is: 115,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,011.36 : 241,565.10 = 76,878.28 : x
  2. Step 2: Convert to fraction form
    161,011.36/241,565.10 = 76,878.28/x
  3. Step 3: Cross multiply
    161,011.36x = 241,565.10 × 76,878.28
  4. Step 4: Simplify right side
    161,011.36x = 18,571,109,396.03
  5. Step 5: Solve for x
    x = 18,571,109,396.03/161,011.36
  6. Step 6: Final answer
    x = 115,340.37

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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.