Home / 131,650.89-181,677.81-71,221.50

Finding the Fourth Proportional to 131,650.89, 181,677.81 and 71,221.50

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Solution

The fourth proportional to 131,650.89, 181,677.81 and 71,221.50 is: 98,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,650.89 : 181,677.81 = 71,221.50 : x
  2. Step 2: Convert to fraction form
    131,650.89/181,677.81 = 71,221.50/x
  3. Step 3: Cross multiply
    131,650.89x = 181,677.81 × 71,221.50
  4. Step 4: Simplify right side
    131,650.89x = 12,939,366,722.65
  5. Step 5: Solve for x
    x = 12,939,366,722.65/131,650.89
  6. Step 6: Final answer
    x = 98,285.44

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1.5x scale

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.