Home / 117,431.18-162,054.80-63,716.18

Finding the Fourth Proportional to 117,431.18, 162,054.80 and 63,716.18

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Solution

The fourth proportional to 117,431.18, 162,054.80 and 63,716.18 is: 87,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,431.18 : 162,054.80 = 63,716.18 : x
  2. Step 2: Convert to fraction form
    117,431.18/162,054.80 = 63,716.18/x
  3. Step 3: Cross multiply
    117,431.18x = 162,054.80 × 63,716.18
  4. Step 4: Simplify right side
    117,431.18x = 10,325,511,677.81
  5. Step 5: Solve for x
    x = 10,325,511,677.81/117,431.18
  6. Step 6: Final answer
    x = 87,928.20

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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.