Home / 145,844.70-218,329.65-137,193.90

Finding the Fourth Proportional to 145,844.70, 218,329.65 and 137,193.90

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Solution

The fourth proportional to 145,844.70, 218,329.65 and 137,193.90 is: 205,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,844.70 : 218,329.65 = 137,193.90 : x
  2. Step 2: Convert to fraction form
    145,844.70/218,329.65 = 137,193.90/x
  3. Step 3: Cross multiply
    145,844.70x = 218,329.65 × 137,193.90
  4. Step 4: Simplify right side
    145,844.70x = 29,953,496,169.14
  5. Step 5: Solve for x
    x = 29,953,496,169.14/145,844.70
  6. Step 6: Final answer
    x = 205,379.39

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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.