Home / 158,541.46-218,786.92-86,926.12

Finding the Fourth Proportional to 158,541.46, 218,786.92 and 86,926.12

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Solution

The fourth proportional to 158,541.46, 218,786.92 and 86,926.12 is: 119,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,541.46 : 218,786.92 = 86,926.12 : x
  2. Step 2: Convert to fraction form
    158,541.46/218,786.92 = 86,926.12/x
  3. Step 3: Cross multiply
    158,541.46x = 218,786.92 × 86,926.12
  4. Step 4: Simplify right side
    158,541.46x = 19,018,296,533.79
  5. Step 5: Solve for x
    x = 19,018,296,533.79/158,541.46
  6. Step 6: Final answer
    x = 119,957.88

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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.