Home / 117,079.35-161,529.69-66,086.07

Finding the Fourth Proportional to 117,079.35, 161,529.69 and 66,086.07

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Solution

The fourth proportional to 117,079.35, 161,529.69 and 66,086.07 is: 91,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,079.35 : 161,529.69 = 66,086.07 : x
  2. Step 2: Convert to fraction form
    117,079.35/161,529.69 = 66,086.07/x
  3. Step 3: Cross multiply
    117,079.35x = 161,529.69 × 66,086.07
  4. Step 4: Simplify right side
    117,079.35x = 10,674,862,400.42
  5. Step 5: Solve for x
    x = 10,674,862,400.42/117,079.35
  6. Step 6: Final answer
    x = 91,176.30

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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.