Home / 117,631.46-162,326.05-66,643.16

Finding the Fourth Proportional to 117,631.46, 162,326.05 and 66,643.16

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Solution

The fourth proportional to 117,631.46, 162,326.05 and 66,643.16 is: 91,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,631.46 : 162,326.05 = 66,643.16 : x
  2. Step 2: Convert to fraction form
    117,631.46/162,326.05 = 66,643.16/x
  3. Step 3: Cross multiply
    117,631.46x = 162,326.05 × 66,643.16
  4. Step 4: Simplify right side
    117,631.46x = 10,817,919,944.08
  5. Step 5: Solve for x
    x = 10,817,919,944.08/117,631.46
  6. Step 6: Final answer
    x = 91,964.51

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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.