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Finding the Fourth Proportional to 100,673.28, 150,943.50 and 56,304.72

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Solution

The fourth proportional to 100,673.28, 150,943.50 and 56,304.72 is: 84,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,673.28 : 150,943.50 = 56,304.72 : x
  2. Step 2: Convert to fraction form
    100,673.28/150,943.50 = 56,304.72/x
  3. Step 3: Cross multiply
    100,673.28x = 150,943.50 × 56,304.72
  4. Step 4: Simplify right side
    100,673.28x = 8,498,831,503.32
  5. Step 5: Solve for x
    x = 8,498,831,503.32/100,673.28
  6. Step 6: Final answer
    x = 84,419.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.