Home / 165,542.32-248,411.90-86,679.10

Finding the Fourth Proportional to 165,542.32, 248,411.90 and 86,679.10

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Solution

The fourth proportional to 165,542.32, 248,411.90 and 86,679.10 is: 130,070.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,542.32 : 248,411.90 = 86,679.10 : x
  2. Step 2: Convert to fraction form
    165,542.32/248,411.90 = 86,679.10/x
  3. Step 3: Cross multiply
    165,542.32x = 248,411.90 × 86,679.10
  4. Step 4: Simplify right side
    165,542.32x = 21,532,119,921.29
  5. Step 5: Solve for x
    x = 21,532,119,921.29/165,542.32
  6. Step 6: Final answer
    x = 130,070.18

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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.