Home / 145,620.05-218,340.86-56,769.75

Finding the Fourth Proportional to 145,620.05, 218,340.86 and 56,769.75

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Solution

The fourth proportional to 145,620.05, 218,340.86 and 56,769.75 is: 85,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,620.05 : 218,340.86 = 56,769.75 : x
  2. Step 2: Convert to fraction form
    145,620.05/218,340.86 = 56,769.75/x
  3. Step 3: Cross multiply
    145,620.05x = 218,340.86 × 56,769.75
  4. Step 4: Simplify right side
    145,620.05x = 12,395,155,753.14
  5. Step 5: Solve for x
    x = 12,395,155,753.14/145,620.05
  6. Step 6: Final answer
    x = 85,119.85

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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.