Home / 138,141.24-190,470.06-97,861.56

Finding the Fourth Proportional to 138,141.24, 190,470.06 and 97,861.56

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Solution

The fourth proportional to 138,141.24, 190,470.06 and 97,861.56 is: 134,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,141.24 : 190,470.06 = 97,861.56 : x
  2. Step 2: Convert to fraction form
    138,141.24/190,470.06 = 97,861.56/x
  3. Step 3: Cross multiply
    138,141.24x = 190,470.06 × 97,861.56
  4. Step 4: Simplify right side
    138,141.24x = 18,639,697,204.89
  5. Step 5: Solve for x
    x = 18,639,697,204.89/138,141.24
  6. Step 6: Final answer
    x = 134,932.17

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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.