Home / 145,434.20-218,165.70-50,649.80

Finding the Fourth Proportional to 145,434.20, 218,165.70 and 50,649.80

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Solution

The fourth proportional to 145,434.20, 218,165.70 and 50,649.80 is: 75,979.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,434.20 : 218,165.70 = 50,649.80 : x
  2. Step 2: Convert to fraction form
    145,434.20/218,165.70 = 50,649.80/x
  3. Step 3: Cross multiply
    145,434.20x = 218,165.70 × 50,649.80
  4. Step 4: Simplify right side
    145,434.20x = 11,050,049,071.86
  5. Step 5: Solve for x
    x = 11,050,049,071.86/145,434.20
  6. Step 6: Final answer
    x = 75,979.72

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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.