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Finding the Fourth Proportional to 89.03, 123.01 and 73.48

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Solution

The fourth proportional to 89.03, 123.01 and 73.48 is: 101.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.03 : 123.01 = 73.48 : x
  2. Step 2: Convert to fraction form
    89.03/123.01 = 73.48/x
  3. Step 3: Cross multiply
    89.03x = 123.01 × 73.48
  4. Step 4: Simplify right side
    89.03x = 9,038.16
  5. Step 5: Solve for x
    x = 9,038.16/89.03
  6. Step 6: Final answer
    x = 101.52

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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.