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Finding the Fourth Proportional to 168,669.86, 253,004.81 and 68,877.05

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Solution

The fourth proportional to 168,669.86, 253,004.81 and 68,877.05 is: 103,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,669.86 : 253,004.81 = 68,877.05 : x
  2. Step 2: Convert to fraction form
    168,669.86/253,004.81 = 68,877.05/x
  3. Step 3: Cross multiply
    168,669.86x = 253,004.81 × 68,877.05
  4. Step 4: Simplify right side
    168,669.86x = 17,426,223,339.20
  5. Step 5: Solve for x
    x = 17,426,223,339.20/168,669.86
  6. Step 6: Final answer
    x = 103,315.58

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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.