Home / 152,783.70-229,181.76-72,780.54

Finding the Fourth Proportional to 152,783.70, 229,181.76 and 72,780.54

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Solution

The fourth proportional to 152,783.70, 229,181.76 and 72,780.54 is: 109,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,783.70 : 229,181.76 = 72,780.54 : x
  2. Step 2: Convert to fraction form
    152,783.70/229,181.76 = 72,780.54/x
  3. Step 3: Cross multiply
    152,783.70x = 229,181.76 × 72,780.54
  4. Step 4: Simplify right side
    152,783.70x = 16,679,972,250.95
  5. Step 5: Solve for x
    x = 16,679,972,250.95/152,783.70
  6. Step 6: Final answer
    x = 109,173.77

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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.