Home / 131,231.34-181,051.88-85,935.15

Finding the Fourth Proportional to 131,231.34, 181,051.88 and 85,935.15

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Solution

The fourth proportional to 131,231.34, 181,051.88 and 85,935.15 is: 118,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,231.34 : 181,051.88 = 85,935.15 : x
  2. Step 2: Convert to fraction form
    131,231.34/181,051.88 = 85,935.15/x
  3. Step 3: Cross multiply
    131,231.34x = 181,051.88 × 85,935.15
  4. Step 4: Simplify right side
    131,231.34x = 15,558,720,035.91
  5. Step 5: Solve for x
    x = 15,558,720,035.91/131,231.34
  6. Step 6: Final answer
    x = 118,559.48

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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.