Home / 131,836.88-181,935.06-71,407.64

Finding the Fourth Proportional to 131,836.88, 181,935.06 and 71,407.64

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Solution

The fourth proportional to 131,836.88, 181,935.06 and 71,407.64 is: 98,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.88 : 181,935.06 = 71,407.64 : x
  2. Step 2: Convert to fraction form
    131,836.88/181,935.06 = 71,407.64/x
  3. Step 3: Cross multiply
    131,836.88x = 181,935.06 × 71,407.64
  4. Step 4: Simplify right side
    131,836.88x = 12,991,553,267.86
  5. Step 5: Solve for x
    x = 12,991,553,267.86/131,836.88
  6. Step 6: Final answer
    x = 98,542.63

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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.