Home / 199,133.12-274,802.89-108,488.81

Finding the Fourth Proportional to 199,133.12, 274,802.89 and 108,488.81

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Solution

The fourth proportional to 199,133.12, 274,802.89 and 108,488.81 is: 149,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,133.12 : 274,802.89 = 108,488.81 : x
  2. Step 2: Convert to fraction form
    199,133.12/274,802.89 = 108,488.81/x
  3. Step 3: Cross multiply
    199,133.12x = 274,802.89 × 108,488.81
  4. Step 4: Simplify right side
    199,133.12x = 29,813,038,520.66
  5. Step 5: Solve for x
    x = 29,813,038,520.66/199,133.12
  6. Step 6: Final answer
    x = 149,714.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.