Home / 170,241.86-255,017.66-78,929

Finding the Fourth Proportional to 170,241.86, 255,017.66 and 78,929

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Solution

The fourth proportional to 170,241.86, 255,017.66 and 78,929 is: 118,233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,241.86 : 255,017.66 = 78,929 : x
  2. Step 2: Convert to fraction form
    170,241.86/255,017.66 = 78,929/x
  3. Step 3: Cross multiply
    170,241.86x = 255,017.66 × 78,929
  4. Step 4: Simplify right side
    170,241.86x = 20,128,288,886.14
  5. Step 5: Solve for x
    x = 20,128,288,886.14/170,241.86
  6. Step 6: Final answer
    x = 118,233.49

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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.