Home / 131,650.23-181,677.77-71,221.13

Finding the Fourth Proportional to 131,650.23, 181,677.77 and 71,221.13

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Solution

The fourth proportional to 131,650.23, 181,677.77 and 71,221.13 is: 98,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,650.23 : 181,677.77 = 71,221.13 : x
  2. Step 2: Convert to fraction form
    131,650.23/181,677.77 = 71,221.13/x
  3. Step 3: Cross multiply
    131,650.23x = 181,677.77 × 71,221.13
  4. Step 4: Simplify right side
    131,650.23x = 12,939,294,810.79
  5. Step 5: Solve for x
    x = 12,939,294,810.79/131,650.23
  6. Step 6: Final answer
    x = 98,285.39

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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.