Home / 147,890.50-204,088.98-80,822.50

Finding the Fourth Proportional to 147,890.50, 204,088.98 and 80,822.50

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Solution

The fourth proportional to 147,890.50, 204,088.98 and 80,822.50 is: 111,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,890.50 : 204,088.98 = 80,822.50 : x
  2. Step 2: Convert to fraction form
    147,890.50/204,088.98 = 80,822.50/x
  3. Step 3: Cross multiply
    147,890.50x = 204,088.98 × 80,822.50
  4. Step 4: Simplify right side
    147,890.50x = 16,494,981,586.05
  5. Step 5: Solve for x
    x = 16,494,981,586.05/147,890.50
  6. Step 6: Final answer
    x = 111,535.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.