Home / 165,071.60-246,951.30-143,128.70

Finding the Fourth Proportional to 165,071.60, 246,951.30 and 143,128.70

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Solution

The fourth proportional to 165,071.60, 246,951.30 and 143,128.70 is: 214,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,071.60 : 246,951.30 = 143,128.70 : x
  2. Step 2: Convert to fraction form
    165,071.60/246,951.30 = 143,128.70/x
  3. Step 3: Cross multiply
    165,071.60x = 246,951.30 × 143,128.70
  4. Step 4: Simplify right side
    165,071.60x = 35,345,818,532.31
  5. Step 5: Solve for x
    x = 35,345,818,532.31/165,071.60
  6. Step 6: Final answer
    x = 214,124.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.