Home / 145,820.28-218,752.20-45,969.96

Finding the Fourth Proportional to 145,820.28, 218,752.20 and 45,969.96

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Solution

The fourth proportional to 145,820.28, 218,752.20 and 45,969.96 is: 68,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,820.28 : 218,752.20 = 45,969.96 : x
  2. Step 2: Convert to fraction form
    145,820.28/218,752.20 = 45,969.96/x
  3. Step 3: Cross multiply
    145,820.28x = 218,752.20 × 45,969.96
  4. Step 4: Simplify right side
    145,820.28x = 10,056,029,883.91
  5. Step 5: Solve for x
    x = 10,056,029,883.91/145,820.28
  6. Step 6: Final answer
    x = 68,961.81

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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.