Home / 165,837.20-248,707.20-77,069.30

Finding the Fourth Proportional to 165,837.20, 248,707.20 and 77,069.30

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Solution

The fourth proportional to 165,837.20, 248,707.20 and 77,069.30 is: 115,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,837.20 : 248,707.20 = 77,069.30 : x
  2. Step 2: Convert to fraction form
    165,837.20/248,707.20 = 77,069.30/x
  3. Step 3: Cross multiply
    165,837.20x = 248,707.20 × 77,069.30
  4. Step 4: Simplify right side
    165,837.20x = 19,167,689,808.96
  5. Step 5: Solve for x
    x = 19,167,689,808.96/165,837.20
  6. Step 6: Final answer
    x = 115,581.36

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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.