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Finding the Fourth Proportional to 113,936.80, 157,232.64 and 63,635.80

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Solution

The fourth proportional to 113,936.80, 157,232.64 and 63,635.80 is: 87,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,936.80 : 157,232.64 = 63,635.80 : x
  2. Step 2: Convert to fraction form
    113,936.80/157,232.64 = 63,635.80/x
  3. Step 3: Cross multiply
    113,936.80x = 157,232.64 × 63,635.80
  4. Step 4: Simplify right side
    113,936.80x = 10,005,624,832.51
  5. Step 5: Solve for x
    x = 10,005,624,832.51/113,936.80
  6. Step 6: Final answer
    x = 87,817.32

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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.