Home / 168,543.50-252,470.74-78,450.04

Finding the Fourth Proportional to 168,543.50, 252,470.74 and 78,450.04

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Solution

The fourth proportional to 168,543.50, 252,470.74 and 78,450.04 is: 117,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,543.50 : 252,470.74 = 78,450.04 : x
  2. Step 2: Convert to fraction form
    168,543.50/252,470.74 = 78,450.04/x
  3. Step 3: Cross multiply
    168,543.50x = 252,470.74 × 78,450.04
  4. Step 4: Simplify right side
    168,543.50x = 19,806,339,651.83
  5. Step 5: Solve for x
    x = 19,806,339,651.83/168,543.50
  6. Step 6: Final answer
    x = 117,514.70

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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.