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Finding the Fourth Proportional to 113,529.68, 156,678.12 and 63,228.56

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Solution

The fourth proportional to 113,529.68, 156,678.12 and 63,228.56 is: 87,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,529.68 : 156,678.12 = 63,228.56 : x
  2. Step 2: Convert to fraction form
    113,529.68/156,678.12 = 63,228.56/x
  3. Step 3: Cross multiply
    113,529.68x = 156,678.12 × 63,228.56
  4. Step 4: Simplify right side
    113,529.68x = 9,906,531,911.11
  5. Step 5: Solve for x
    x = 9,906,531,911.11/113,529.68
  6. Step 6: Final answer
    x = 87,259.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.