Home / 236,247.18-326,014-128,819.31

Finding the Fourth Proportional to 236,247.18, 326,014 and 128,819.31

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Solution

The fourth proportional to 236,247.18, 326,014 and 128,819.31 is: 177,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,247.18 : 326,014 = 128,819.31 : x
  2. Step 2: Convert to fraction form
    236,247.18/326,014 = 128,819.31/x
  3. Step 3: Cross multiply
    236,247.18x = 326,014 × 128,819.31
  4. Step 4: Simplify right side
    236,247.18x = 41,996,898,530.34
  5. Step 5: Solve for x
    x = 41,996,898,530.34/236,247.18
  6. Step 6: Final answer
    x = 177,766.77

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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.