Home / 133,039.76-199,559.16-54,136.40

Finding the Fourth Proportional to 133,039.76, 199,559.16 and 54,136.40

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Solution

The fourth proportional to 133,039.76, 199,559.16 and 54,136.40 is: 81,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,039.76 : 199,559.16 = 54,136.40 : x
  2. Step 2: Convert to fraction form
    133,039.76/199,559.16 = 54,136.40/x
  3. Step 3: Cross multiply
    133,039.76x = 199,559.16 × 54,136.40
  4. Step 4: Simplify right side
    133,039.76x = 10,803,414,509.42
  5. Step 5: Solve for x
    x = 10,803,414,509.42/133,039.76
  6. Step 6: Final answer
    x = 81,204.40

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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.