Home / 165,071.60-228,012.50-136,506.65

Finding the Fourth Proportional to 165,071.60, 228,012.50 and 136,506.65

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Solution

The fourth proportional to 165,071.60, 228,012.50 and 136,506.65 is: 188,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,071.60 : 228,012.50 = 136,506.65 : x
  2. Step 2: Convert to fraction form
    165,071.60/228,012.50 = 136,506.65/x
  3. Step 3: Cross multiply
    165,071.60x = 228,012.50 × 136,506.65
  4. Step 4: Simplify right side
    165,071.60x = 31,125,220,710.53
  5. Step 5: Solve for x
    x = 31,125,220,710.53/165,071.60
  6. Step 6: Final answer
    x = 188,555.88

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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.