Home / 165,070.48-227,287.20-128,917.96

Finding the Fourth Proportional to 165,070.48, 227,287.20 and 128,917.96

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Solution

The fourth proportional to 165,070.48, 227,287.20 and 128,917.96 is: 177,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,070.48 : 227,287.20 = 128,917.96 : x
  2. Step 2: Convert to fraction form
    165,070.48/227,287.20 = 128,917.96/x
  3. Step 3: Cross multiply
    165,070.48x = 227,287.20 × 128,917.96
  4. Step 4: Simplify right side
    165,070.48x = 29,301,402,158.11
  5. Step 5: Solve for x
    x = 29,301,402,158.11/165,070.48
  6. Step 6: Final answer
    x = 177,508.43

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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.