Home / 165,890.16-248,680.80-66,031.20

Finding the Fourth Proportional to 165,890.16, 248,680.80 and 66,031.20

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Solution

The fourth proportional to 165,890.16, 248,680.80 and 66,031.20 is: 98,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,890.16 : 248,680.80 = 66,031.20 : x
  2. Step 2: Convert to fraction form
    165,890.16/248,680.80 = 66,031.20/x
  3. Step 3: Cross multiply
    165,890.16x = 248,680.80 × 66,031.20
  4. Step 4: Simplify right side
    165,890.16x = 16,420,691,640.96
  5. Step 5: Solve for x
    x = 16,420,691,640.96/165,890.16
  6. Step 6: Final answer
    x = 98,985.33

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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.