Home / 199,733.40-299,945.70-106,421.40

Finding the Fourth Proportional to 199,733.40, 299,945.70 and 106,421.40

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Solution

The fourth proportional to 199,733.40, 299,945.70 and 106,421.40 is: 159,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,733.40 : 299,945.70 = 106,421.40 : x
  2. Step 2: Convert to fraction form
    199,733.40/299,945.70 = 106,421.40/x
  3. Step 3: Cross multiply
    199,733.40x = 299,945.70 × 106,421.40
  4. Step 4: Simplify right side
    199,733.40x = 31,920,641,317.98
  5. Step 5: Solve for x
    x = 31,920,641,317.98/199,733.40
  6. Step 6: Final answer
    x = 159,816.24

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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.