Home / 156,791.25-216,461.70-103,231.98

Finding the Fourth Proportional to 156,791.25, 216,461.70 and 103,231.98

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Solution

The fourth proportional to 156,791.25, 216,461.70 and 103,231.98 is: 142,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,791.25 : 216,461.70 = 103,231.98 : x
  2. Step 2: Convert to fraction form
    156,791.25/216,461.70 = 103,231.98/x
  3. Step 3: Cross multiply
    156,791.25x = 216,461.70 × 103,231.98
  4. Step 4: Simplify right side
    156,791.25x = 22,345,769,885.17
  5. Step 5: Solve for x
    x = 22,345,769,885.17/156,791.25
  6. Step 6: Final answer
    x = 142,519.24

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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.