Home / 131,387.68-181,313.04-74,798.56

Finding the Fourth Proportional to 131,387.68, 181,313.04 and 74,798.56

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Solution

The fourth proportional to 131,387.68, 181,313.04 and 74,798.56 is: 103,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,387.68 : 181,313.04 = 74,798.56 : x
  2. Step 2: Convert to fraction form
    131,387.68/181,313.04 = 74,798.56/x
  3. Step 3: Cross multiply
    131,387.68x = 181,313.04 × 74,798.56
  4. Step 4: Simplify right side
    131,387.68x = 13,561,954,301.22
  5. Step 5: Solve for x
    x = 13,561,954,301.22/131,387.68
  6. Step 6: Final answer
    x = 103,220.90

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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.