Home / 152,229.47-228,482.72-81,212.32

Finding the Fourth Proportional to 152,229.47, 228,482.72 and 81,212.32

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Solution

The fourth proportional to 152,229.47, 228,482.72 and 81,212.32 is: 121,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,229.47 : 228,482.72 = 81,212.32 : x
  2. Step 2: Convert to fraction form
    152,229.47/228,482.72 = 81,212.32/x
  3. Step 3: Cross multiply
    152,229.47x = 228,482.72 × 81,212.32
  4. Step 4: Simplify right side
    152,229.47x = 18,555,610,222.64
  5. Step 5: Solve for x
    x = 18,555,610,222.64/152,229.47
  6. Step 6: Final answer
    x = 121,892.37

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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.