Home / 131,650.31-181,677.24-71,220.80

Finding the Fourth Proportional to 131,650.31, 181,677.24 and 71,220.80

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Solution

The fourth proportional to 131,650.31, 181,677.24 and 71,220.80 is: 98,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,650.31 : 181,677.24 = 71,220.80 : x
  2. Step 2: Convert to fraction form
    131,650.31/181,677.24 = 71,220.80/x
  3. Step 3: Cross multiply
    131,650.31x = 181,677.24 × 71,220.80
  4. Step 4: Simplify right side
    131,650.31x = 12,939,197,466.21
  5. Step 5: Solve for x
    x = 12,939,197,466.21/131,650.31
  6. Step 6: Final answer
    x = 98,284.60

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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.