Home / 96,700.20-145,050.30-30,145.71

Finding the Fourth Proportional to 96,700.20, 145,050.30 and 30,145.71

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Solution

The fourth proportional to 96,700.20, 145,050.30 and 30,145.71 is: 45,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,700.20 : 145,050.30 = 30,145.71 : x
  2. Step 2: Convert to fraction form
    96,700.20/145,050.30 = 30,145.71/x
  3. Step 3: Cross multiply
    96,700.20x = 145,050.30 × 30,145.71
  4. Step 4: Simplify right side
    96,700.20x = 4,372,644,279.21
  5. Step 5: Solve for x
    x = 4,372,644,279.21/96,700.20
  6. Step 6: Final answer
    x = 45,218.57

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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.