Home / 98,610.09-136,194.17-66,288.59

Finding the Fourth Proportional to 98,610.09, 136,194.17 and 66,288.59

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Solution

The fourth proportional to 98,610.09, 136,194.17 and 66,288.59 is: 91,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,610.09 : 136,194.17 = 66,288.59 : x
  2. Step 2: Convert to fraction form
    98,610.09/136,194.17 = 66,288.59/x
  3. Step 3: Cross multiply
    98,610.09x = 136,194.17 × 66,288.59
  4. Step 4: Simplify right side
    98,610.09x = 9,028,118,483.11
  5. Step 5: Solve for x
    x = 9,028,118,483.11/98,610.09
  6. Step 6: Final answer
    x = 91,553.70

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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.