Home / 155,267.38-214,269.24-87,288.16

Finding the Fourth Proportional to 155,267.38, 214,269.24 and 87,288.16

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Solution

The fourth proportional to 155,267.38, 214,269.24 and 87,288.16 is: 120,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,267.38 : 214,269.24 = 87,288.16 : x
  2. Step 2: Convert to fraction form
    155,267.38/214,269.24 = 87,288.16/x
  3. Step 3: Cross multiply
    155,267.38x = 214,269.24 × 87,288.16
  4. Step 4: Simplify right side
    155,267.38x = 18,703,167,704.20
  5. Step 5: Solve for x
    x = 18,703,167,704.20/155,267.38
  6. Step 6: Final answer
    x = 120,457.80

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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.