Home / 145,200.24-200,375.56-81,543.60

Finding the Fourth Proportional to 145,200.24, 200,375.56 and 81,543.60

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Solution

The fourth proportional to 145,200.24, 200,375.56 and 81,543.60 is: 112,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,200.24 : 200,375.56 = 81,543.60 : x
  2. Step 2: Convert to fraction form
    145,200.24/200,375.56 = 81,543.60/x
  3. Step 3: Cross multiply
    145,200.24x = 200,375.56 × 81,543.60
  4. Step 4: Simplify right side
    145,200.24x = 16,339,344,514.42
  5. Step 5: Solve for x
    x = 16,339,344,514.42/145,200.24
  6. Step 6: Final answer
    x = 112,529.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.