Home / 98,805.48-136,430.16-91,249.05

Finding the Fourth Proportional to 98,805.48, 136,430.16 and 91,249.05

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Solution

The fourth proportional to 98,805.48, 136,430.16 and 91,249.05 is: 125,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,805.48 : 136,430.16 = 91,249.05 : x
  2. Step 2: Convert to fraction form
    98,805.48/136,430.16 = 91,249.05/x
  3. Step 3: Cross multiply
    98,805.48x = 136,430.16 × 91,249.05
  4. Step 4: Simplify right side
    98,805.48x = 12,449,122,491.35
  5. Step 5: Solve for x
    x = 12,449,122,491.35/98,805.48
  6. Step 6: Final answer
    x = 125,996.28

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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.