Home / 131,640.93-181,664.24-71,211.62

Finding the Fourth Proportional to 131,640.93, 181,664.24 and 71,211.62

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Solution

The fourth proportional to 131,640.93, 181,664.24 and 71,211.62 is: 98,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,640.93 : 181,664.24 = 71,211.62 : x
  2. Step 2: Convert to fraction form
    131,640.93/181,664.24 = 71,211.62/x
  3. Step 3: Cross multiply
    131,640.93x = 181,664.24 × 71,211.62
  4. Step 4: Simplify right side
    131,640.93x = 12,936,604,924.57
  5. Step 5: Solve for x
    x = 12,936,604,924.57/131,640.93
  6. Step 6: Final answer
    x = 98,271.90

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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.