Home / 166,638.32-229,721.64-118,808.66

Finding the Fourth Proportional to 166,638.32, 229,721.64 and 118,808.66

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Solution

The fourth proportional to 166,638.32, 229,721.64 and 118,808.66 is: 163,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,638.32 : 229,721.64 = 118,808.66 : x
  2. Step 2: Convert to fraction form
    166,638.32/229,721.64 = 118,808.66/x
  3. Step 3: Cross multiply
    166,638.32x = 229,721.64 × 118,808.66
  4. Step 4: Simplify right side
    166,638.32x = 27,292,920,221.40
  5. Step 5: Solve for x
    x = 27,292,920,221.40/166,638.32
  6. Step 6: Final answer
    x = 163,785.38

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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.