Home / 151,538.83-209,125.07-83,558.28

Finding the Fourth Proportional to 151,538.83, 209,125.07 and 83,558.28

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Solution

The fourth proportional to 151,538.83, 209,125.07 and 83,558.28 is: 115,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,538.83 : 209,125.07 = 83,558.28 : x
  2. Step 2: Convert to fraction form
    151,538.83/209,125.07 = 83,558.28/x
  3. Step 3: Cross multiply
    151,538.83x = 209,125.07 × 83,558.28
  4. Step 4: Simplify right side
    151,538.83x = 17,474,131,154.08
  5. Step 5: Solve for x
    x = 17,474,131,154.08/151,538.83
  6. Step 6: Final answer
    x = 115,311.25

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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.