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Finding the Fourth Proportional to 98.10, 148.07 and 95.36

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Solution

The fourth proportional to 98.10, 148.07 and 95.36 is: 143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.10 : 148.07 = 95.36 : x
  2. Step 2: Convert to fraction form
    98.10/148.07 = 95.36/x
  3. Step 3: Cross multiply
    98.10x = 148.07 × 95.36
  4. Step 4: Simplify right side
    98.10x = 14,118.74
  5. Step 5: Solve for x
    x = 14,118.74/98.10
  6. Step 6: Final answer
    x = 143.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.