Home / 152,424.12-228,569.96-81,330.90

Finding the Fourth Proportional to 152,424.12, 228,569.96 and 81,330.90

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Solution

The fourth proportional to 152,424.12, 228,569.96 and 81,330.90 is: 121,961.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,424.12 : 228,569.96 = 81,330.90 : x
  2. Step 2: Convert to fraction form
    152,424.12/228,569.96 = 81,330.90/x
  3. Step 3: Cross multiply
    152,424.12x = 228,569.96 × 81,330.90
  4. Step 4: Simplify right side
    152,424.12x = 18,589,800,559.76
  5. Step 5: Solve for x
    x = 18,589,800,559.76/152,424.12
  6. Step 6: Final answer
    x = 121,961.02

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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.