Home / 108,378.21-162,614.02-45,210.77

Finding the Fourth Proportional to 108,378.21, 162,614.02 and 45,210.77

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Solution

The fourth proportional to 108,378.21, 162,614.02 and 45,210.77 is: 67,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,378.21 : 162,614.02 = 45,210.77 : x
  2. Step 2: Convert to fraction form
    108,378.21/162,614.02 = 45,210.77/x
  3. Step 3: Cross multiply
    108,378.21x = 162,614.02 × 45,210.77
  4. Step 4: Simplify right side
    108,378.21x = 7,351,905,057.00
  5. Step 5: Solve for x
    x = 7,351,905,057.00/108,378.21
  6. Step 6: Final answer
    x = 67,835.64

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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.