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Finding the Fourth Proportional to 152.03, 209.70 and 93.75

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Solution

The fourth proportional to 152.03, 209.70 and 93.75 is: 129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.03 : 209.70 = 93.75 : x
  2. Step 2: Convert to fraction form
    152.03/209.70 = 93.75/x
  3. Step 3: Cross multiply
    152.03x = 209.70 × 93.75
  4. Step 4: Simplify right side
    152.03x = 19,659.38
  5. Step 5: Solve for x
    x = 19,659.38/152.03
  6. Step 6: Final answer
    x = 129.31

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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.