Home / 117,330.06-161,873.01-77,065.68

Finding the Fourth Proportional to 117,330.06, 161,873.01 and 77,065.68

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Solution

The fourth proportional to 117,330.06, 161,873.01 and 77,065.68 is: 106,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.06 : 161,873.01 = 77,065.68 : x
  2. Step 2: Convert to fraction form
    117,330.06/161,873.01 = 77,065.68/x
  3. Step 3: Cross multiply
    117,330.06x = 161,873.01 × 77,065.68
  4. Step 4: Simplify right side
    117,330.06x = 12,474,853,589.30
  5. Step 5: Solve for x
    x = 12,474,853,589.30/117,330.06
  6. Step 6: Final answer
    x = 106,322.74

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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.