Home / 152,115.20-228,172.80-89,907.20

Finding the Fourth Proportional to 152,115.20, 228,172.80 and 89,907.20

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Solution

The fourth proportional to 152,115.20, 228,172.80 and 89,907.20 is: 134,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,115.20 : 228,172.80 = 89,907.20 : x
  2. Step 2: Convert to fraction form
    152,115.20/228,172.80 = 89,907.20/x
  3. Step 3: Cross multiply
    152,115.20x = 228,172.80 × 89,907.20
  4. Step 4: Simplify right side
    152,115.20x = 20,514,377,564.16
  5. Step 5: Solve for x
    x = 20,514,377,564.16/152,115.20
  6. Step 6: Final answer
    x = 134,860.80

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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.