Home / 117,237.51-161,785.63-66,249.13

Finding the Fourth Proportional to 117,237.51, 161,785.63 and 66,249.13

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Solution

The fourth proportional to 117,237.51, 161,785.63 and 66,249.13 is: 91,422.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,237.51 : 161,785.63 = 66,249.13 : x
  2. Step 2: Convert to fraction form
    117,237.51/161,785.63 = 66,249.13/x
  3. Step 3: Cross multiply
    117,237.51x = 161,785.63 × 66,249.13
  4. Step 4: Simplify right side
    117,237.51x = 10,718,156,902.76
  5. Step 5: Solve for x
    x = 10,718,156,902.76/117,237.51
  6. Step 6: Final answer
    x = 91,422.59

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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.