Home / 151,511.29-209,087.03-83,530.75

Finding the Fourth Proportional to 151,511.29, 209,087.03 and 83,530.75

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Solution

The fourth proportional to 151,511.29, 209,087.03 and 83,530.75 is: 115,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,511.29 : 209,087.03 = 83,530.75 : x
  2. Step 2: Convert to fraction form
    151,511.29/209,087.03 = 83,530.75/x
  3. Step 3: Cross multiply
    151,511.29x = 209,087.03 × 83,530.75
  4. Step 4: Simplify right side
    151,511.29x = 17,465,196,431.17
  5. Step 5: Solve for x
    x = 17,465,196,431.17/151,511.29
  6. Step 6: Final answer
    x = 115,273.23

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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.