Home / 165,602.60-248,568.70-76,876.20

Finding the Fourth Proportional to 165,602.60, 248,568.70 and 76,876.20

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Solution

The fourth proportional to 165,602.60, 248,568.70 and 76,876.20 is: 115,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,602.60 : 248,568.70 = 76,876.20 : x
  2. Step 2: Convert to fraction form
    165,602.60/248,568.70 = 76,876.20/x
  3. Step 3: Cross multiply
    165,602.60x = 248,568.70 × 76,876.20
  4. Step 4: Simplify right side
    165,602.60x = 19,109,017,094.94
  5. Step 5: Solve for x
    x = 19,109,017,094.94/165,602.60
  6. Step 6: Final answer
    x = 115,390.80

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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.