Home / 151,878.24-209,591.13-83,899.89

Finding the Fourth Proportional to 151,878.24, 209,591.13 and 83,899.89

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Solution

The fourth proportional to 151,878.24, 209,591.13 and 83,899.89 is: 115,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,878.24 : 209,591.13 = 83,899.89 : x
  2. Step 2: Convert to fraction form
    151,878.24/209,591.13 = 83,899.89/x
  3. Step 3: Cross multiply
    151,878.24x = 209,591.13 × 83,899.89
  4. Step 4: Simplify right side
    151,878.24x = 17,584,672,751.98
  5. Step 5: Solve for x
    x = 17,584,672,751.98/151,878.24
  6. Step 6: Final answer
    x = 115,781.38

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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.