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Finding the Fourth Proportional to 117,578.40, 162,254.88 and 63,861.63

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Solution

The fourth proportional to 117,578.40, 162,254.88 and 63,861.63 is: 88,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,578.40 : 162,254.88 = 63,861.63 : x
  2. Step 2: Convert to fraction form
    117,578.40/162,254.88 = 63,861.63/x
  3. Step 3: Cross multiply
    117,578.40x = 162,254.88 × 63,861.63
  4. Step 4: Simplify right side
    117,578.40x = 10,361,861,112.25
  5. Step 5: Solve for x
    x = 10,361,861,112.25/117,578.40
  6. Step 6: Final answer
    x = 88,127.25

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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.