Home / 151,913.70-209,643.10-83,932.25

Finding the Fourth Proportional to 151,913.70, 209,643.10 and 83,932.25

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Solution

The fourth proportional to 151,913.70, 209,643.10 and 83,932.25 is: 115,827.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,913.70 : 209,643.10 = 83,932.25 : x
  2. Step 2: Convert to fraction form
    151,913.70/209,643.10 = 83,932.25/x
  3. Step 3: Cross multiply
    151,913.70x = 209,643.10 × 83,932.25
  4. Step 4: Simplify right side
    151,913.70x = 17,595,815,821.93
  5. Step 5: Solve for x
    x = 17,595,815,821.93/151,913.70
  6. Step 6: Final answer
    x = 115,827.71

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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.