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Finding the Fourth Proportional to 89,133.76, 133,442.15 and 69,352.34

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Solution

The fourth proportional to 89,133.76, 133,442.15 and 69,352.34 is: 103,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,133.76 : 133,442.15 = 69,352.34 : x
  2. Step 2: Convert to fraction form
    89,133.76/133,442.15 = 69,352.34/x
  3. Step 3: Cross multiply
    89,133.76x = 133,442.15 × 69,352.34
  4. Step 4: Simplify right side
    89,133.76x = 9,254,525,343.97
  5. Step 5: Solve for x
    x = 9,254,525,343.97/89,133.76
  6. Step 6: Final answer
    x = 103,827.39

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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.