Home / 152,575.38-228,567.87-85,812.66

Finding the Fourth Proportional to 152,575.38, 228,567.87 and 85,812.66

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Solution

The fourth proportional to 152,575.38, 228,567.87 and 85,812.66 is: 128,552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,575.38 : 228,567.87 = 85,812.66 : x
  2. Step 2: Convert to fraction form
    152,575.38/228,567.87 = 85,812.66/x
  3. Step 3: Cross multiply
    152,575.38x = 228,567.87 × 85,812.66
  4. Step 4: Simplify right side
    152,575.38x = 19,614,016,915.23
  5. Step 5: Solve for x
    x = 19,614,016,915.23/152,575.38
  6. Step 6: Final answer
    x = 128,552.96

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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.