Home / 155,451.54-214,518.24-87,472.38

Finding the Fourth Proportional to 155,451.54, 214,518.24 and 87,472.38

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Solution

The fourth proportional to 155,451.54, 214,518.24 and 87,472.38 is: 120,709.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,451.54 : 214,518.24 = 87,472.38 : x
  2. Step 2: Convert to fraction form
    155,451.54/214,518.24 = 87,472.38/x
  3. Step 3: Cross multiply
    155,451.54x = 214,518.24 × 87,472.38
  4. Step 4: Simplify right side
    155,451.54x = 18,764,421,006.21
  5. Step 5: Solve for x
    x = 18,764,421,006.21/155,451.54
  6. Step 6: Final answer
    x = 120,709.14

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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.