Home / 98,607.09-136,190.03-66,285.59

Finding the Fourth Proportional to 98,607.09, 136,190.03 and 66,285.59

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Solution

The fourth proportional to 98,607.09, 136,190.03 and 66,285.59 is: 91,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,607.09 : 136,190.03 = 66,285.59 : x
  2. Step 2: Convert to fraction form
    98,607.09/136,190.03 = 66,285.59/x
  3. Step 3: Cross multiply
    98,607.09x = 136,190.03 × 66,285.59
  4. Step 4: Simplify right side
    98,607.09x = 9,027,435,478.29
  5. Step 5: Solve for x
    x = 9,027,435,478.29/98,607.09
  6. Step 6: Final answer
    x = 91,549.56

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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.