Home / 151,947.84-228,019.52-81,875.84

Finding the Fourth Proportional to 151,947.84, 228,019.52 and 81,875.84

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Solution

The fourth proportional to 151,947.84, 228,019.52 and 81,875.84 is: 122,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,947.84 : 228,019.52 = 81,875.84 : x
  2. Step 2: Convert to fraction form
    151,947.84/228,019.52 = 81,875.84/x
  3. Step 3: Cross multiply
    151,947.84x = 228,019.52 × 81,875.84
  4. Step 4: Simplify right side
    151,947.84x = 18,669,289,736.40
  5. Step 5: Solve for x
    x = 18,669,289,736.40/151,947.84
  6. Step 6: Final answer
    x = 122,866.44

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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.