Home / 465,136.20-697,704.30-128,176.20

Finding the Fourth Proportional to 465,136.20, 697,704.30 and 128,176.20

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Solution

The fourth proportional to 465,136.20, 697,704.30 and 128,176.20 is: 192,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,136.20 : 697,704.30 = 128,176.20 : x
  2. Step 2: Convert to fraction form
    465,136.20/697,704.30 = 128,176.20/x
  3. Step 3: Cross multiply
    465,136.20x = 697,704.30 × 128,176.20
  4. Step 4: Simplify right side
    465,136.20x = 89,429,085,897.66
  5. Step 5: Solve for x
    x = 89,429,085,897.66/465,136.20
  6. Step 6: Final answer
    x = 192,264.30

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1.5x scale

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.