Home / 168,911.40-253,367.10-155,133.30

Finding the Fourth Proportional to 168,911.40, 253,367.10 and 155,133.30

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Solution

The fourth proportional to 168,911.40, 253,367.10 and 155,133.30 is: 232,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,911.40 : 253,367.10 = 155,133.30 : x
  2. Step 2: Convert to fraction form
    168,911.40/253,367.10 = 155,133.30/x
  3. Step 3: Cross multiply
    168,911.40x = 253,367.10 × 155,133.30
  4. Step 4: Simplify right side
    168,911.40x = 39,305,674,334.43
  5. Step 5: Solve for x
    x = 39,305,674,334.43/168,911.40
  6. Step 6: Final answer
    x = 232,699.95

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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.