Home / 193,125.40-289,601.70-87,890.20

Finding the Fourth Proportional to 193,125.40, 289,601.70 and 87,890.20

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Solution

The fourth proportional to 193,125.40, 289,601.70 and 87,890.20 is: 131,795.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,125.40 : 289,601.70 = 87,890.20 : x
  2. Step 2: Convert to fraction form
    193,125.40/289,601.70 = 87,890.20/x
  3. Step 3: Cross multiply
    193,125.40x = 289,601.70 × 87,890.20
  4. Step 4: Simplify right side
    193,125.40x = 25,453,151,333.34
  5. Step 5: Solve for x
    x = 25,453,151,333.34/193,125.40
  6. Step 6: Final answer
    x = 131,795.98

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1.5x scale

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.