Home / 525,136.20-787,898.70-170,161.80

Finding the Fourth Proportional to 525,136.20, 787,898.70 and 170,161.80

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Solution

The fourth proportional to 525,136.20, 787,898.70 and 170,161.80 is: 255,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,136.20 : 787,898.70 = 170,161.80 : x
  2. Step 2: Convert to fraction form
    525,136.20/787,898.70 = 170,161.80/x
  3. Step 3: Cross multiply
    525,136.20x = 787,898.70 × 170,161.80
  4. Step 4: Simplify right side
    525,136.20x = 134,070,261,009.66
  5. Step 5: Solve for x
    x = 134,070,261,009.66/525,136.20
  6. Step 6: Final answer
    x = 255,305.69

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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.