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Finding the Fourth Proportional to 99.07, 148.29 and 62.98

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Solution

The fourth proportional to 99.07, 148.29 and 62.98 is: 94.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.07 : 148.29 = 62.98 : x
  2. Step 2: Convert to fraction form
    99.07/148.29 = 62.98/x
  3. Step 3: Cross multiply
    99.07x = 148.29 × 62.98
  4. Step 4: Simplify right side
    99.07x = 9,339.30
  5. Step 5: Solve for x
    x = 9,339.30/99.07
  6. Step 6: Final answer
    x = 94.27

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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.