Home / 117,245.13-161,788.70-66,262.23

Finding the Fourth Proportional to 117,245.13, 161,788.70 and 66,262.23

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Solution

The fourth proportional to 117,245.13, 161,788.70 and 66,262.23 is: 91,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,245.13 : 161,788.70 = 66,262.23 : x
  2. Step 2: Convert to fraction form
    117,245.13/161,788.70 = 66,262.23/x
  3. Step 3: Cross multiply
    117,245.13x = 161,788.70 × 66,262.23
  4. Step 4: Simplify right side
    117,245.13x = 10,720,479,719.49
  5. Step 5: Solve for x
    x = 10,720,479,719.49/117,245.13
  6. Step 6: Final answer
    x = 91,436.46

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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.