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Finding the Fourth Proportional to 117,377.66, 161,980.92 and 63,662.40

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Solution

The fourth proportional to 117,377.66, 161,980.92 and 63,662.40 is: 87,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,377.66 : 161,980.92 = 63,662.40 : x
  2. Step 2: Convert to fraction form
    117,377.66/161,980.92 = 63,662.40/x
  3. Step 3: Cross multiply
    117,377.66x = 161,980.92 × 63,662.40
  4. Step 4: Simplify right side
    117,377.66x = 10,312,094,121.41
  5. Step 5: Solve for x
    x = 10,312,094,121.41/117,377.66
  6. Step 6: Final answer
    x = 87,853.98

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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.