Home / 157,857.06-217,761.84-106,871.61

Finding the Fourth Proportional to 157,857.06, 217,761.84 and 106,871.61

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Solution

The fourth proportional to 157,857.06, 217,761.84 and 106,871.61 is: 147,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,857.06 : 217,761.84 = 106,871.61 : x
  2. Step 2: Convert to fraction form
    157,857.06/217,761.84 = 106,871.61/x
  3. Step 3: Cross multiply
    157,857.06x = 217,761.84 × 106,871.61
  4. Step 4: Simplify right side
    157,857.06x = 23,272,558,437.36
  5. Step 5: Solve for x
    x = 23,272,558,437.36/157,857.06
  6. Step 6: Final answer
    x = 147,428.05

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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.