Home / 165,733.10-248,599.65-72,421.10

Finding the Fourth Proportional to 165,733.10, 248,599.65 and 72,421.10

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Solution

The fourth proportional to 165,733.10, 248,599.65 and 72,421.10 is: 108,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,733.10 : 248,599.65 = 72,421.10 : x
  2. Step 2: Convert to fraction form
    165,733.10/248,599.65 = 72,421.10/x
  3. Step 3: Cross multiply
    165,733.10x = 248,599.65 × 72,421.10
  4. Step 4: Simplify right side
    165,733.10x = 18,003,860,112.62
  5. Step 5: Solve for x
    x = 18,003,860,112.62/165,733.10
  6. Step 6: Final answer
    x = 108,631.65

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Similar ratio
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1.5x scale

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.