Home / 145,189.45-200,343.34-80,658.37

Finding the Fourth Proportional to 145,189.45, 200,343.34 and 80,658.37

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Solution

The fourth proportional to 145,189.45, 200,343.34 and 80,658.37 is: 111,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,189.45 : 200,343.34 = 80,658.37 : x
  2. Step 2: Convert to fraction form
    145,189.45/200,343.34 = 80,658.37/x
  3. Step 3: Cross multiply
    145,189.45x = 200,343.34 × 80,658.37
  4. Step 4: Simplify right side
    145,189.45x = 16,159,367,244.76
  5. Step 5: Solve for x
    x = 16,159,367,244.76/145,189.45
  6. Step 6: Final answer
    x = 111,298.49

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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.