Home / 131,763.56-181,832.45-71,332.65

Finding the Fourth Proportional to 131,763.56, 181,832.45 and 71,332.65

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Solution

The fourth proportional to 131,763.56, 181,832.45 and 71,332.65 is: 98,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,763.56 : 181,832.45 = 71,332.65 : x
  2. Step 2: Convert to fraction form
    131,763.56/181,832.45 = 71,332.65/x
  3. Step 3: Cross multiply
    131,763.56x = 181,832.45 × 71,332.65
  4. Step 4: Simplify right side
    131,763.56x = 12,970,590,157.83
  5. Step 5: Solve for x
    x = 12,970,590,157.83/131,763.56
  6. Step 6: Final answer
    x = 98,438.37

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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.