Home / 415,362.50-623,043.69-99,819.41

Finding the Fourth Proportional to 415,362.50, 623,043.69 and 99,819.41

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Solution

The fourth proportional to 415,362.50, 623,043.69 and 99,819.41 is: 149,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,362.50 : 623,043.69 = 99,819.41 : x
  2. Step 2: Convert to fraction form
    415,362.50/623,043.69 = 99,819.41/x
  3. Step 3: Cross multiply
    415,362.50x = 623,043.69 × 99,819.41
  4. Step 4: Simplify right side
    415,362.50x = 62,191,850,424.80
  5. Step 5: Solve for x
    x = 62,191,850,424.80/415,362.50
  6. Step 6: Final answer
    x = 149,729.09

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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.