Home / 116,528.11-160,808.56-65,540.03

Finding the Fourth Proportional to 116,528.11, 160,808.56 and 65,540.03

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Solution

The fourth proportional to 116,528.11, 160,808.56 and 65,540.03 is: 90,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,528.11 : 160,808.56 = 65,540.03 : x
  2. Step 2: Convert to fraction form
    116,528.11/160,808.56 = 65,540.03/x
  3. Step 3: Cross multiply
    116,528.11x = 160,808.56 × 65,540.03
  4. Step 4: Simplify right side
    116,528.11x = 10,539,396,878.76
  5. Step 5: Solve for x
    x = 10,539,396,878.76/116,528.11
  6. Step 6: Final answer
    x = 90,445.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.