Home / 131,881.16-181,995.76-71,453.34

Finding the Fourth Proportional to 131,881.16, 181,995.76 and 71,453.34

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Solution

The fourth proportional to 131,881.16, 181,995.76 and 71,453.34 is: 98,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,881.16 : 181,995.76 = 71,453.34 : x
  2. Step 2: Convert to fraction form
    131,881.16/181,995.76 = 71,453.34/x
  3. Step 3: Cross multiply
    131,881.16x = 181,995.76 × 71,453.34
  4. Step 4: Simplify right side
    131,881.16x = 13,004,205,007.16
  5. Step 5: Solve for x
    x = 13,004,205,007.16/131,881.16
  6. Step 6: Final answer
    x = 98,605.48

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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.