Home / 145,057.36-217,549.08-45,198.94

Finding the Fourth Proportional to 145,057.36, 217,549.08 and 45,198.94

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Solution

The fourth proportional to 145,057.36, 217,549.08 and 45,198.94 is: 67,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,057.36 : 217,549.08 = 45,198.94 : x
  2. Step 2: Convert to fraction form
    145,057.36/217,549.08 = 45,198.94/x
  3. Step 3: Cross multiply
    145,057.36x = 217,549.08 × 45,198.94
  4. Step 4: Simplify right side
    145,057.36x = 9,832,987,813.98
  5. Step 5: Solve for x
    x = 9,832,987,813.98/145,057.36
  6. Step 6: Final answer
    x = 67,786.89

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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.