Home / 153,528.13-211,884.39-85,556.17

Finding the Fourth Proportional to 153,528.13, 211,884.39 and 85,556.17

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Solution

The fourth proportional to 153,528.13, 211,884.39 and 85,556.17 is: 118,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,528.13 : 211,884.39 = 85,556.17 : x
  2. Step 2: Convert to fraction form
    153,528.13/211,884.39 = 85,556.17/x
  3. Step 3: Cross multiply
    153,528.13x = 211,884.39 × 85,556.17
  4. Step 4: Simplify right side
    153,528.13x = 18,128,016,891.19
  5. Step 5: Solve for x
    x = 18,128,016,891.19/153,528.13
  6. Step 6: Final answer
    x = 118,076.19

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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.