Home / 120,869.04-166,804.02-82,708.64

Finding the Fourth Proportional to 120,869.04, 166,804.02 and 82,708.64

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Solution

The fourth proportional to 120,869.04, 166,804.02 and 82,708.64 is: 114,141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,869.04 : 166,804.02 = 82,708.64 : x
  2. Step 2: Convert to fraction form
    120,869.04/166,804.02 = 82,708.64/x
  3. Step 3: Cross multiply
    120,869.04x = 166,804.02 × 82,708.64
  4. Step 4: Simplify right side
    120,869.04x = 13,796,132,806.71
  5. Step 5: Solve for x
    x = 13,796,132,806.71/120,869.04
  6. Step 6: Final answer
    x = 114,141.16

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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.