Home / 151,382.08-208,923.69-83,406.03

Finding the Fourth Proportional to 151,382.08, 208,923.69 and 83,406.03

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Solution

The fourth proportional to 151,382.08, 208,923.69 and 83,406.03 is: 115,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,382.08 : 208,923.69 = 83,406.03 : x
  2. Step 2: Convert to fraction form
    151,382.08/208,923.69 = 83,406.03/x
  3. Step 3: Cross multiply
    151,382.08x = 208,923.69 × 83,406.03
  4. Step 4: Simplify right side
    151,382.08x = 17,425,495,555.85
  5. Step 5: Solve for x
    x = 17,425,495,555.85/151,382.08
  6. Step 6: Final answer
    x = 115,109.37

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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.