Home / 483,012.90-724,519.35-128,081.70

Finding the Fourth Proportional to 483,012.90, 724,519.35 and 128,081.70

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Solution

The fourth proportional to 483,012.90, 724,519.35 and 128,081.70 is: 192,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,012.90 : 724,519.35 = 128,081.70 : x
  2. Step 2: Convert to fraction form
    483,012.90/724,519.35 = 128,081.70/x
  3. Step 3: Cross multiply
    483,012.90x = 724,519.35 × 128,081.70
  4. Step 4: Simplify right side
    483,012.90x = 92,797,670,030.90
  5. Step 5: Solve for x
    x = 92,797,670,030.90/483,012.90
  6. Step 6: Final answer
    x = 192,122.55

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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.