Home / 131,787.54-181,879.83-75,207.42

Finding the Fourth Proportional to 131,787.54, 181,879.83 and 75,207.42

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Solution

The fourth proportional to 131,787.54, 181,879.83 and 75,207.42 is: 103,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,787.54 : 181,879.83 = 75,207.42 : x
  2. Step 2: Convert to fraction form
    131,787.54/181,879.83 = 75,207.42/x
  3. Step 3: Cross multiply
    131,787.54x = 181,879.83 × 75,207.42
  4. Step 4: Simplify right side
    131,787.54x = 13,678,712,764.34
  5. Step 5: Solve for x
    x = 13,678,712,764.34/131,787.54
  6. Step 6: Final answer
    x = 103,793.67

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1.5x scale

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.