Home / 155,285.08-214,288.44-87,304.93

Finding the Fourth Proportional to 155,285.08, 214,288.44 and 87,304.93

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Solution

The fourth proportional to 155,285.08, 214,288.44 and 87,304.93 is: 120,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,285.08 : 214,288.44 = 87,304.93 : x
  2. Step 2: Convert to fraction form
    155,285.08/214,288.44 = 87,304.93/x
  3. Step 3: Cross multiply
    155,285.08x = 214,288.44 × 87,304.93
  4. Step 4: Simplify right side
    155,285.08x = 18,708,436,182.57
  5. Step 5: Solve for x
    x = 18,708,436,182.57/155,285.08
  6. Step 6: Final answer
    x = 120,478.01

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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.