Home / 90,815.18-136,064.21-59,174.75

Finding the Fourth Proportional to 90,815.18, 136,064.21 and 59,174.75

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Solution

The fourth proportional to 90,815.18, 136,064.21 and 59,174.75 is: 88,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,815.18 : 136,064.21 = 59,174.75 : x
  2. Step 2: Convert to fraction form
    90,815.18/136,064.21 = 59,174.75/x
  3. Step 3: Cross multiply
    90,815.18x = 136,064.21 × 59,174.75
  4. Step 4: Simplify right side
    90,815.18x = 8,051,565,654.98
  5. Step 5: Solve for x
    x = 8,051,565,654.98/90,815.18
  6. Step 6: Final answer
    x = 88,658.81

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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.