Home / 156,784.74-216,352.24-85,163.22

Finding the Fourth Proportional to 156,784.74, 216,352.24 and 85,163.22

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Solution

The fourth proportional to 156,784.74, 216,352.24 and 85,163.22 is: 117,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,784.74 : 216,352.24 = 85,163.22 : x
  2. Step 2: Convert to fraction form
    156,784.74/216,352.24 = 85,163.22/x
  3. Step 3: Cross multiply
    156,784.74x = 216,352.24 × 85,163.22
  4. Step 4: Simplify right side
    156,784.74x = 18,425,254,047.72
  5. Step 5: Solve for x
    x = 18,425,254,047.72/156,784.74
  6. Step 6: Final answer
    x = 117,519.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.