Home / 168,733.80-253,280.70-72,718.56

Finding the Fourth Proportional to 168,733.80, 253,280.70 and 72,718.56

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Solution

The fourth proportional to 168,733.80, 253,280.70 and 72,718.56 is: 109,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,733.80 : 253,280.70 = 72,718.56 : x
  2. Step 2: Convert to fraction form
    168,733.80/253,280.70 = 72,718.56/x
  3. Step 3: Cross multiply
    168,733.80x = 253,280.70 × 72,718.56
  4. Step 4: Simplify right side
    168,733.80x = 18,418,207,779.79
  5. Step 5: Solve for x
    x = 18,418,207,779.79/168,733.80
  6. Step 6: Final answer
    x = 109,155.41

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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.